yaffs-ecoscentric-gpl: packages/fs/yaffs/current/src/yaffs

annotate packages/fs/yaffs/current/src/yaffs_fs.c @ 425:dea4d7d250ad ecos

Move sources into packages/fs/yaffs/current/src/

author	Ross Younger <wry@ecoscentric.com>
date	Fri, 14 May 2010 16:03:09 +0100
parents	yaffs_fs.c@ff48885b11fb
children

rev	line source
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1 /*
168 b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	2 * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3 *
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	4 * Copyright (C) 2002-2010 Aleph One Ltd.
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	5 * for Toby Churchill Ltd and Brightstar Engineering
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	6 *
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	7 * Created by Charles Manning <charles@aleph1.co.uk>
168 b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	8 * Acknowledgements:
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	9 * Luc van OostenRyck for numerous patches.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	10 * Nick Bane for numerous patches.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	11 * Nick Bane for 2.5/2.6 integration.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	12 * Andras Toth for mknod rdev issue.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	13 * Michael Fischer for finding the problem with inode inconsistency.
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	14 * Some code bodily lifted from JFFS
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	15 *
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	16 * This program is free software; you can redistribute it and/or modify
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	17 * it under the terms of the GNU General Public License version 2 as
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	18 * published by the Free Software Foundation.
168 b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	19 */
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	20
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	21 /*
b8f20fdc3a58 normalise licence headers and attributions wookey <wookey> parents: 166 diff changeset	22 *
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	23 * This is the file system front-end to YAFFS that hooks it up to
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	24 * the VFS.
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	25 *
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	26 * Special notes:
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	27 * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with
0113df80498c lindent marty <marty> parents: 70 diff changeset	28 * this superblock
0113df80498c lindent marty <marty> parents: 70 diff changeset	29 * >> 2.6: sb->s_fs_info points to the yaffs_Device associated with this
0113df80498c lindent marty <marty> parents: 70 diff changeset	30 * superblock
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	31 * >> inode->u.generic_ip points to the associated yaffs_Object.
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	32 */
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	33
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	34 #include <linux/version.h>
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	35
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	36 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10))
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	37 #define YAFFS_COMPILE_BACKGROUND
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	38 #endif
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	39
401 7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	40 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	41 #define YAFFS_COMPILE_EXPORTFS
7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	42 #endif
7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	43
7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	44
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	45 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	46 #include <linux/config.h>
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	47 #endif
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	48
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	49 #include <linux/kernel.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	50 #include <linux/module.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	51 #include <linux/slab.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	52 #include <linux/init.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	53 #include <linux/fs.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	54 #include <linux/proc_fs.h>
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	55 #include <linux/smp_lock.h>
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	56 #include <linux/pagemap.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	57 #include <linux/mtd/mtd.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	58 #include <linux/interrupt.h>
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	59 #include <linux/string.h>
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	60 #include <linux/ctype.h>
401 7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	61
7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	62 #ifdef YAFFS_COMPILE_EXPORTFS
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	63 #include <linux/exportfs.h>
401 7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	64 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	65
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	66 #ifdef YAFFS_COMPILE_BACKGROUND
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	67 #include <linux/kthread.h>
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	68 #include <linux/delay.h>
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	69 #include <linux/freezer.h>
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	70 #endif
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	71
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	72 #include <asm/div64.h>
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	73
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	74 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	75
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	76 #include <linux/statfs.h>
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	77
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	78 #define UnlockPage(p) unlock_page(p)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	79 #define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	80
0113df80498c lindent marty <marty> parents: 70 diff changeset	81 /* FIXME: use sb->s_id instead ? */
0113df80498c lindent marty <marty> parents: 70 diff changeset	82 #define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	83
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	84 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	85
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	86 #include <linux/locks.h>
37 843d9d0add74 Fix devname which was faked by always using "(unavailable)". luc <luc> parents: 36 diff changeset	87 #define BDEVNAME_SIZE 0
843d9d0add74 Fix devname which was faked by always using "(unavailable)". luc <luc> parents: 36 diff changeset	88 #define yaffs_devname(sb, buf) kdevname(sb->s_dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	89
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	90 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0))
137 57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	91 /* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	92 #define __user
57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	93 #endif
57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	94
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	95 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	96
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	97 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	98 #define YPROC_ROOT (&proc_root)
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	99 #else
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	100 #define YPROC_ROOT NULL
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	101 #endif
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	102
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	103 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	104 #define WRITE_SIZE_STR "writesize"
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	105 #define WRITE_SIZE(mtd) ((mtd)->writesize)
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	106 #else
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	107 #define WRITE_SIZE_STR "oobblock"
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	108 #define WRITE_SIZE(mtd) ((mtd)->oobblock)
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	109 #endif
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	110
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	111 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27))
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	112 #define YAFFS_USE_WRITE_BEGIN_END 1
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	113 #else
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	114 #define YAFFS_USE_WRITE_BEGIN_END 0
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	115 #endif
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	116
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	117 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	118 static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	119 {
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	120 uint64_t result = partition_size;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	121 do_div(result, block_size);
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	122 return (uint32_t)result;
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	123 }
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	124 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	125 #define YCALCBLOCKS(s, b) ((s)/(b))
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	126 #endif
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	127
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	128 #include <linux/uaccess.h>
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	129 #include <linux/mtd/mtd.h>
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	130
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	131 #include "yportenv.h"
342 ce702882929d Move tracing out of yportenv.h charles <charles> parents: 332 diff changeset	132 #include "yaffs_trace.h"
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	133 #include "yaffs_guts.h"
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	134
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	135 #include "yaffs_linux.h"
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	136
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	137 #include "yaffs_mtdif.h"
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	138 #include "yaffs_mtdif1.h"
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	139 #include "yaffs_mtdif2.h"
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	140
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	141 unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS \| YAFFS_TRACE_ALWAYS;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	142 unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
249 7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	143 unsigned int yaffs_auto_checkpoint = 1;
388 36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	144 unsigned int yaffs_gc_control = 1;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	145
2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	146 /* Module Parameters */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	147 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	148 module_param(yaffs_traceMask, uint, 0644);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	149 module_param(yaffs_wr_attempts, uint, 0644);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	150 module_param(yaffs_auto_checkpoint, uint, 0644);
388 36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	151 module_param(yaffs_gc_control, uint, 0644);
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	152 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	153 MODULE_PARM(yaffs_traceMask, "i");
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	154 MODULE_PARM(yaffs_wr_attempts, "i");
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	155 MODULE_PARM(yaffs_auto_checkpoint, "i");
388 36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	156 MODULE_PARM(yaffs_gc_control, "i");
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	157 #endif
2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	158
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	159 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	160 /* use iget and read_inode */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	161 #define Y_IGET(sb, inum) iget((sb), (inum))
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	162 static void yaffs_read_inode(struct inode *inode);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	163
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	164 #else
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	165 /* Call local equivalent */
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	166 #define YAFFS_USE_OWN_IGET
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	167 #define Y_IGET(sb, inum) yaffs_iget((sb), (inum))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	168
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	169 static struct inode yaffs_iget(struct super_block sb, unsigned long ino);
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	170 #endif
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	171
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	172 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	173 #define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private)
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	174 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	175 #define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip)
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	176 #endif
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	177
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	178 #define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr)))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	179 #define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	180
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	181 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	182 #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	183 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	184 #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	185 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	186
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	187
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	188 #define update_dir_time(dir) do {\
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	189 (dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	190 } while(0)
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	191
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	192 static void yaffs_put_super(struct super_block *sb);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	193
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	194 static ssize_t yaffs_file_write(struct file f, const char buf, size_t n,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	195 loff_t *pos);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	196 static ssize_t yaffs_hold_space(struct file *f);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	197 static void yaffs_release_space(struct file *f);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	198
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	199 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	200 static int yaffs_file_flush(struct file *file, fl_owner_t id);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	201 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	202 static int yaffs_file_flush(struct file *file);
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	203 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	204
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	205 static int yaffs_sync_object(struct file file, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	206 int datasync);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	207
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	208 static int yaffs_readdir(struct file f, void dirent, filldir_t filldir);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	209
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	210 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	211 static int yaffs_create(struct inode dir, struct dentry dentry, int mode,
0113df80498c lindent marty <marty> parents: 70 diff changeset	212 struct nameidata *n);
0113df80498c lindent marty <marty> parents: 70 diff changeset	213 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	214 struct nameidata *n);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	215 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	216 static int yaffs_create(struct inode dir, struct dentry dentry, int mode);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	217 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	218 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	219 static int yaffs_link(struct dentry old_dentry, struct inode dir,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	220 struct dentry *dentry);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	221 static int yaffs_unlink(struct inode dir, struct dentry dentry);
0113df80498c lindent marty <marty> parents: 70 diff changeset	222 static int yaffs_symlink(struct inode dir, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	223 const char *symname);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	224 static int yaffs_mkdir(struct inode dir, struct dentry dentry, int mode);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	225
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	226 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	227 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	228 dev_t dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	229 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	230 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	231 int dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	232 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	233 static int yaffs_rename(struct inode old_dir, struct dentry old_dentry,
0113df80498c lindent marty <marty> parents: 70 diff changeset	234 struct inode new_dir, struct dentry new_dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	235 static int yaffs_setattr(struct dentry dentry, struct iattr attr);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	236
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	237 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	238 static int yaffs_sync_fs(struct super_block *sb, int wait);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	239 static void yaffs_write_super(struct super_block *sb);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	240 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	241 static int yaffs_sync_fs(struct super_block *sb);
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	242 static int yaffs_write_super(struct super_block *sb);
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	243 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	244
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	245 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	246 static int yaffs_statfs(struct dentry dentry, struct kstatfs buf);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	247 #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	248 static int yaffs_statfs(struct super_block sb, struct kstatfs buf);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	249 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	250 static int yaffs_statfs(struct super_block sb, struct statfs buf);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	251 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	252
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	253 #ifdef YAFFS_HAS_PUT_INODE
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	254 static void yaffs_put_inode(struct inode *inode);
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	255 #endif
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	256
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	257 static void yaffs_delete_inode(struct inode *);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	258 static void yaffs_clear_inode(struct inode *);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	259
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	260 static int yaffs_readpage(struct file file, struct page page);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	261 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	262 static int yaffs_writepage(struct page page, struct writeback_control wbc);
7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	263 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	264 static int yaffs_writepage(struct page *page);
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	265 #endif
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	266
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	267
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	268 #if (YAFFS_USE_WRITE_BEGIN_END != 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	269 static int yaffs_write_begin(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	270 loff_t pos, unsigned len, unsigned flags,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	271 struct page pagep, void fsdata);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	272 static int yaffs_write_end(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	273 loff_t pos, unsigned len, unsigned copied,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	274 struct page pg, void fsdadata);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	275 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	276 static int yaffs_prepare_write(struct file f, struct page pg,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	277 unsigned offset, unsigned to);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	278 static int yaffs_commit_write(struct file f, struct page pg, unsigned offset,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	279 unsigned to);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	280
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	281 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	282
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	283 static int yaffs_readlink(struct dentry dentry, char __user buffer,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	284 int buflen);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	285 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	286 static void yaffs_follow_link(struct dentry dentry, struct nameidata *nd);
4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	287 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	288 static int yaffs_follow_link(struct dentry dentry, struct nameidata nd);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	289 #endif
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	290 static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	291
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	292 static struct address_space_operations yaffs_file_address_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	293 .readpage = yaffs_readpage,
0113df80498c lindent marty <marty> parents: 70 diff changeset	294 .writepage = yaffs_writepage,
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	295 #if (YAFFS_USE_WRITE_BEGIN_END > 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	296 .write_begin = yaffs_write_begin,
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	297 .write_end = yaffs_write_end,
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	298 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	299 .prepare_write = yaffs_prepare_write,
0113df80498c lindent marty <marty> parents: 70 diff changeset	300 .commit_write = yaffs_commit_write,
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	301 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	302 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	303
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	304 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	305 static const struct file_operations yaffs_file_operations = {
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	306 .read = do_sync_read,
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	307 .write = do_sync_write,
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	308 .aio_read = generic_file_aio_read,
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	309 .aio_write = generic_file_aio_write,
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	310 .mmap = generic_file_mmap,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	311 .flush = yaffs_file_flush,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	312 .fsync = yaffs_sync_object,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	313 .splice_read = generic_file_splice_read,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	314 .splice_write = generic_file_splice_write,
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	315 .llseek = generic_file_llseek,
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	316 };
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	317
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	318 #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	319
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	320 static const struct file_operations yaffs_file_operations = {
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	321 .read = do_sync_read,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	322 .write = do_sync_write,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	323 .aio_read = generic_file_aio_read,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	324 .aio_write = generic_file_aio_write,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	325 .mmap = generic_file_mmap,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	326 .flush = yaffs_file_flush,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	327 .fsync = yaffs_sync_object,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	328 .sendfile = generic_file_sendfile,
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	329 };
b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	330
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	331 #else
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	332
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	333 static const struct file_operations yaffs_file_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	334 .read = generic_file_read,
0113df80498c lindent marty <marty> parents: 70 diff changeset	335 .write = generic_file_write,
0113df80498c lindent marty <marty> parents: 70 diff changeset	336 .mmap = generic_file_mmap,
0113df80498c lindent marty <marty> parents: 70 diff changeset	337 .flush = yaffs_file_flush,
0113df80498c lindent marty <marty> parents: 70 diff changeset	338 .fsync = yaffs_sync_object,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	339 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
112 0f8838615001 Add generic sendfile method for yaffs2, also thereby allowing loopback mount. tpoynor <tpoynor> parents: 109 diff changeset	340 .sendfile = generic_file_sendfile,
0f8838615001 Add generic sendfile method for yaffs2, also thereby allowing loopback mount. tpoynor <tpoynor> parents: 109 diff changeset	341 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	342 };
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	343 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	344
346 e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	345 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	346 static void zero_user_segment(struct page *page, unsigned start, unsigned end)
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	347 {
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	348 void * kaddr = kmap_atomic(page, KM_USER0);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	349 memset(kaddr + start, 0, end - start);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	350 kunmap_atomic(kaddr, KM_USER0);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	351 flush_dcache_page(page);
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	352 }
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	353 #endif
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	354
e67cba11aad9 Add own zero_user_segment for older kernels charles <charles> parents: 342 diff changeset	355
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	356 static const struct inode_operations yaffs_file_inode_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	357 .setattr = yaffs_setattr,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	358 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	359
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	360 static const struct inode_operations yaffs_symlink_inode_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	361 .readlink = yaffs_readlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	362 .follow_link = yaffs_follow_link,
0113df80498c lindent marty <marty> parents: 70 diff changeset	363 .setattr = yaffs_setattr,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	364 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	365
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	366 static const struct inode_operations yaffs_dir_inode_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	367 .create = yaffs_create,
0113df80498c lindent marty <marty> parents: 70 diff changeset	368 .lookup = yaffs_lookup,
0113df80498c lindent marty <marty> parents: 70 diff changeset	369 .link = yaffs_link,
0113df80498c lindent marty <marty> parents: 70 diff changeset	370 .unlink = yaffs_unlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	371 .symlink = yaffs_symlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	372 .mkdir = yaffs_mkdir,
0113df80498c lindent marty <marty> parents: 70 diff changeset	373 .rmdir = yaffs_unlink,
0113df80498c lindent marty <marty> parents: 70 diff changeset	374 .mknod = yaffs_mknod,
0113df80498c lindent marty <marty> parents: 70 diff changeset	375 .rename = yaffs_rename,
0113df80498c lindent marty <marty> parents: 70 diff changeset	376 .setattr = yaffs_setattr,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	377 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	378
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	379 static const struct file_operations yaffs_dir_operations = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	380 .read = generic_read_dir,
0113df80498c lindent marty <marty> parents: 70 diff changeset	381 .readdir = yaffs_readdir,
0113df80498c lindent marty <marty> parents: 70 diff changeset	382 .fsync = yaffs_sync_object,
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	383 .llseek = yaffs_dir_llseek,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	384 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	385
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	386 static const struct super_operations yaffs_super_ops = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	387 .statfs = yaffs_statfs,
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	388
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	389 #ifndef YAFFS_USE_OWN_IGET
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	390 .read_inode = yaffs_read_inode,
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	391 #endif
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	392 #ifdef YAFFS_HAS_PUT_INODE
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	393 .put_inode = yaffs_put_inode,
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	394 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	395 .put_super = yaffs_put_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	396 .delete_inode = yaffs_delete_inode,
0113df80498c lindent marty <marty> parents: 70 diff changeset	397 .clear_inode = yaffs_clear_inode,
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	398 .sync_fs = yaffs_sync_fs,
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	399 .write_super = yaffs_write_super,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	400 };
388 36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	401
36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	402 static unsigned yaffs_gc_control_callback(yaffs_Device *dev)
36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	403 {
36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	404 return yaffs_gc_control;
36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	405 }
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	406
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	407 static void yaffs_GrossLock(yaffs_Device *dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	408 {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	409 T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current));
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	410 down(&(yaffs_DeviceToContext(dev)->grossLock));
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	411 T(YAFFS_TRACE_LOCK, (TSTR("yaffs locked %p\n"), current));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	412 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	413
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	414 static void yaffs_GrossUnlock(yaffs_Device *dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	415 {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	416 T(YAFFS_TRACE_LOCK, (TSTR("yaffs unlocking %p\n"), current));
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	417 up(&(yaffs_DeviceToContext(dev)->grossLock));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	418 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	419
401 7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	420 #ifdef YAFFS_COMPILE_EXPORTFS
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	421
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	422 static struct inode *
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	423 yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino, uint32_t generation)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	424 {
401 7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	425 return Y_IGET(sb, ino);
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	426 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	427
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	428 static struct dentry *
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	429 yaffs2_fh_to_dentry(struct super_block sb, struct fid fid, int fh_len, int fh_type)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	430 {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	431 return generic_fh_to_dentry(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode) ;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	432 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	433
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	434 static struct dentry *
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	435 yaffs2_fh_to_parent(struct super_block sb, struct fid fid, int fh_len, int fh_type)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	436 {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	437 return generic_fh_to_parent(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	438 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	439
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	440 struct dentry yaffs2_get_parent(struct dentry dentry)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	441 {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	442
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	443 struct super_block *sb = dentry->d_inode->i_sb;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	444 struct dentry *parent = ERR_PTR(-ENOENT);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	445 struct inode *inode;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	446 unsigned long parent_ino;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	447 yaffs_Object *d_obj;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	448 yaffs_Object *parent_obj;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	449
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	450 d_obj = yaffs_InodeToObject(dentry->d_inode);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	451
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	452 if (d_obj) {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	453 parent_obj = d_obj->parent;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	454 if (parent_obj) {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	455 parent_ino = yaffs_GetObjectInode(parent_obj);
401 7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	456 inode = Y_IGET(sb, parent_ino);
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	457
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	458 if (IS_ERR(inode)) {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	459 parent = ERR_CAST(inode);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	460 } else {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	461 parent = d_obtain_alias(inode);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	462 if (!IS_ERR(parent)) {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	463 parent = ERR_PTR(-ENOMEM);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	464 iput(inode);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	465 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	466 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	467 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	468 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	469
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	470 return parent;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	471 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	472
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	473 /* Just declare a zero structure as a NULL value implies
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	474 * using the default functions of exportfs.
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	475 */
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	476
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	477 static struct export_operations yaffs_export_ops =
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	478 {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	479 .fh_to_dentry = yaffs2_fh_to_dentry,
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	480 .fh_to_parent = yaffs2_fh_to_parent,
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	481 .get_parent = yaffs2_get_parent,
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	482 } ;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	483
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	484 #endif
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	485
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	486 /-----------------------------------------------------------------/
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	487 /* Directory search context allows us to unlock access to yaffs during
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	488 * filldir without causing problems with the directory being modified.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	489 * This is similar to the tried and tested mechanism used in yaffs direct.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	490 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	491 * A search context iterates along a doubly linked list of siblings in the
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	492 * directory. If the iterating object is deleted then this would corrupt
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	493 * the list iteration, likely causing a crash. The search context avoids
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	494 * this by using the removeObjectCallback to move the search context to the
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	495 * next object before the object is deleted.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	496 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	497 * Many readdirs (and thus seach conexts) may be alive simulateously so
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	498 * each yaffs_Device has a list of these.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	499 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	500 * A seach context lives for the duration of a readdir.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	501 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	502 * All these functions must be called while yaffs is locked.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	503 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	504
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	505 struct yaffs_SearchContext {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	506 yaffs_Device *dev;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	507 yaffs_Object *dirObj;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	508 yaffs_Object *nextReturn;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	509 struct ylist_head others;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	510 };
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	511
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	512 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	513 * yaffs_NewSearch() creates a new search context, initialises it and
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	514 * adds it to the device's search context list.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	515 *
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	516 * Called at start of readdir.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	517 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	518 static struct yaffs_SearchContext * yaffs_NewSearch(yaffs_Object *dir)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	519 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	520 yaffs_Device *dev = dir->myDev;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	521 struct yaffs_SearchContext *sc = YMALLOC(sizeof(struct yaffs_SearchContext));
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	522 if(sc){
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	523 sc->dirObj = dir;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	524 sc->dev = dev;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	525 if( ylist_empty(&sc->dirObj->variant.directoryVariant.children))
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	526 sc->nextReturn = NULL;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	527 else
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	528 sc->nextReturn = ylist_entry(
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	529 dir->variant.directoryVariant.children.next,
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	530 yaffs_Object,siblings);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	531 YINIT_LIST_HEAD(&sc->others);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	532 ylist_add(&sc->others,&(yaffs_DeviceToContext(dev)->searchContexts));
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	533 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	534 return sc;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	535 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	536
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	537 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	538 * yaffs_EndSearch() disposes of a search context and cleans up.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	539 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	540 static void yaffs_EndSearch(struct yaffs_SearchContext * sc)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	541 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	542 if(sc){
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	543 ylist_del(&sc->others);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	544 YFREE(sc);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	545 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	546 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	547
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	548 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	549 * yaffs_SearchAdvance() moves a search context to the next object.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	550 * Called when the search iterates or when an object removal causes
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	551 * the search context to be moved to the next object.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	552 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	553 static void yaffs_SearchAdvance(struct yaffs_SearchContext *sc)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	554 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	555 if(!sc)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	556 return;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	557
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	558 if( sc->nextReturn == NULL \|\|
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	559 ylist_empty(&sc->dirObj->variant.directoryVariant.children))
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	560 sc->nextReturn = NULL;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	561 else {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	562 struct ylist_head *next = sc->nextReturn->siblings.next;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	563
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	564 if( next == &sc->dirObj->variant.directoryVariant.children)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	565 sc->nextReturn = NULL; /* end of list */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	566 else
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	567 sc->nextReturn = ylist_entry(next,yaffs_Object,siblings);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	568 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	569 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	570
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	571 /*
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	572 * yaffs_RemoveObjectCallback() is called when an object is unlinked.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	573 * We check open search contexts and advance any which are currently
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	574 * on the object being iterated.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	575 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	576 static void yaffs_RemoveObjectCallback(yaffs_Object *obj)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	577 {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	578
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	579 struct ylist_head *i;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	580 struct yaffs_SearchContext *sc;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	581 struct ylist_head *search_contexts = &(yaffs_DeviceToContext(obj->myDev)->searchContexts);
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	582
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	583
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	584 /* Iterate through the directory search contexts.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	585 * If any are currently on the object being removed, then advance
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	586 * the search context to the next object to prevent a hanging pointer.
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	587 */
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	588 ylist_for_each(i, search_contexts) {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	589 if (i) {
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	590 sc = ylist_entry(i, struct yaffs_SearchContext,others);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	591 if(sc->nextReturn == obj)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	592 yaffs_SearchAdvance(sc);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	593 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	594 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	595
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	596 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	597
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	598
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	599 /-----------------------------------------------------------------/
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	600
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	601 static int yaffs_readlink(struct dentry dentry, char __user buffer,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	602 int buflen)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	603 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	604 unsigned char *alias;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	605 int ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	606
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	607 yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	608
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	609 yaffs_GrossLock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	610
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	611 alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	612
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	613 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	614
0113df80498c lindent marty <marty> parents: 70 diff changeset	615 if (!alias)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	616 return -ENOMEM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	617
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	618 ret = vfs_readlink(dentry, buffer, buflen, alias);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	619 kfree(alias);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	620 return ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	621 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	622
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	623 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	624 static void yaffs_follow_link(struct dentry dentry, struct nameidata *nd)
4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	625 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	626 static int yaffs_follow_link(struct dentry dentry, struct nameidata nd)
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	627 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	628 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	629 unsigned char *alias;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	630 int ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	631 yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	632
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	633 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	634
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	635 alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	636
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	637 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	638
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	639 if (!alias) {
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	640 ret = -ENOMEM;
4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	641 goto out;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	642 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	643
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	644 ret = vfs_follow_link(nd, alias);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	645 kfree(alias);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	646 out:
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	647 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	648 return ERR_PTR(ret);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	649 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	650 return ret;
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	651 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	652 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	653
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	654 struct inode yaffs_get_inode(struct super_block sb, int mode, int dev,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	655 yaffs_Object *obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	656
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	657 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	658 * Lookup is used to find objects in the fs
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	659 */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	660 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	661
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	662 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	663 struct nameidata *n)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	664 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	665 static struct dentry yaffs_lookup(struct inode dir, struct dentry *dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	666 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	667 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	668 yaffs_Object *obj;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	669 struct inode inode = NULL; / NCB 2.5/2.6 needs NULL here */
0113df80498c lindent marty <marty> parents: 70 diff changeset	670
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	671 yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	672
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	673 if(current != yaffs_DeviceToContext(dev)->readdirProcess)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	674 yaffs_GrossLock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	675
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	676 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	677 (TSTR("yaffs_lookup for %d:%s\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	678 yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	679
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	680 obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	681 dentry->d_name.name);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	682
0113df80498c lindent marty <marty> parents: 70 diff changeset	683 obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	684
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	685 /* Can't hold gross lock when calling yaffs_get_inode() */
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	686 if(current != yaffs_DeviceToContext(dev)->readdirProcess)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	687 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	688
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	689 if (obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	690 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	691 (TSTR("yaffs_lookup found %d\n"), obj->objectId));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	692
0113df80498c lindent marty <marty> parents: 70 diff changeset	693 inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
0113df80498c lindent marty <marty> parents: 70 diff changeset	694
0113df80498c lindent marty <marty> parents: 70 diff changeset	695 if (inode) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	696 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	697 (TSTR("yaffs_loookup dentry \n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	698 /* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
0113df80498c lindent marty <marty> parents: 70 diff changeset	699 * d_add even if NULL inode */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	700 #if 0
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	701 /dget(dentry); // try to solve directory bug /
0113df80498c lindent marty <marty> parents: 70 diff changeset	702 d_add(dentry, inode);
0113df80498c lindent marty <marty> parents: 70 diff changeset	703
0113df80498c lindent marty <marty> parents: 70 diff changeset	704 /* return dentry; */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	705 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	706 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	707 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	708
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	709 } else {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	710 T(YAFFS_TRACE_OS,(TSTR("yaffs_lookup not found\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	711
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	712 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	713
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	714 /* added NCB for 2.5/6 compatability - forces add even if inode is
0113df80498c lindent marty <marty> parents: 70 diff changeset	715 * NULL which creates dentry hash */
0113df80498c lindent marty <marty> parents: 70 diff changeset	716 d_add(dentry, inode);
0113df80498c lindent marty <marty> parents: 70 diff changeset	717
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	718 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	719 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	720
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	721
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	722 #ifdef YAFFS_HAS_PUT_INODE
0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	723
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	724 /* For now put inode is just for debugging
0113df80498c lindent marty <marty> parents: 70 diff changeset	725 * Put inode is called when the inode structure is put.
0113df80498c lindent marty <marty> parents: 70 diff changeset	726 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	727 static void yaffs_put_inode(struct inode *inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	728 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	729 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	730 (TSTR("yaffs_put_inode: ino %d, count %d\n"), (int)inode->i_ino,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	731 atomic_read(&inode->i_count)));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	732
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	733 }
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	734 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	735
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	736 /* clear is called to tell the fs to release any per-inode data it holds */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	737 static void yaffs_clear_inode(struct inode *inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	738 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	739 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	740 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	741
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	742 obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	743
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	744 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	745 (TSTR("yaffs_clear_inode: ino %d, count %d %s\n"), (int)inode->i_ino,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	746 atomic_read(&inode->i_count),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	747 obj ? "object exists" : "null object"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	748
0113df80498c lindent marty <marty> parents: 70 diff changeset	749 if (obj) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	750 dev = obj->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	751 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	752
0113df80498c lindent marty <marty> parents: 70 diff changeset	753 /* Clear the association between the inode and
0113df80498c lindent marty <marty> parents: 70 diff changeset	754 * the yaffs_Object.
0113df80498c lindent marty <marty> parents: 70 diff changeset	755 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	756 obj->myInode = NULL;
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	757 yaffs_InodeToObjectLV(inode) = NULL;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	758
0113df80498c lindent marty <marty> parents: 70 diff changeset	759 /* If the object freeing was deferred, then the real
0113df80498c lindent marty <marty> parents: 70 diff changeset	760 * free happens now.
0113df80498c lindent marty <marty> parents: 70 diff changeset	761 * This should fix the inode inconsistency problem.
0113df80498c lindent marty <marty> parents: 70 diff changeset	762 */
0113df80498c lindent marty <marty> parents: 70 diff changeset	763
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	764 yaffs_HandleDeferedFree(obj);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	765
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	766 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	767 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	768
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	769 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	770
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	771 /* delete is called when the link count is zero and the inode
0113df80498c lindent marty <marty> parents: 70 diff changeset	772 * is put (ie. nobody wants to know about it anymore, time to
0113df80498c lindent marty <marty> parents: 70 diff changeset	773 * delete the file).
0113df80498c lindent marty <marty> parents: 70 diff changeset	774 * NB Must call clear_inode()
0113df80498c lindent marty <marty> parents: 70 diff changeset	775 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	776 static void yaffs_delete_inode(struct inode *inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	777 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	778 yaffs_Object *obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	779 yaffs_Device *dev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	780
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	781 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	782 (TSTR("yaffs_delete_inode: ino %d, count %d %s\n"), (int)inode->i_ino,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	783 atomic_read(&inode->i_count),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	784 obj ? "object exists" : "null object"));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	785
0113df80498c lindent marty <marty> parents: 70 diff changeset	786 if (obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	787 dev = obj->myDev;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	788 yaffs_GrossLock(dev);
268 f13c5ef026ec Change inode deletion to prevent issue raised by YBUG charles <charles> parents: 267 diff changeset	789 yaffs_DeleteObject(obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	790 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	791 }
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	792 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	793 truncate_inode_pages(&inode->i_data, 0);
99 4850556d44c6 Apply 2.6.14 patches from Andre charles <charles> parents: 95 diff changeset	794 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	795 clear_inode(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	796 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	797
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	798 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	799 static int yaffs_file_flush(struct file *file, fl_owner_t id)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	800 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	801 static int yaffs_file_flush(struct file *file)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	802 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	803 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	804 yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	805
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	806 yaffs_Device *dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	807
0113df80498c lindent marty <marty> parents: 70 diff changeset	808 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	809 (TSTR("yaffs_file_flush object %d (%s)\n"), obj->objectId,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	810 obj->dirty ? "dirty" : "clean"));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	811
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	812 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	813
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	814 yaffs_FlushFile(obj, 1, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	815
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	816 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	817
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	818 return 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	819 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	820
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	821 static int yaffs_readpage_nolock(struct file f, struct page pg)
0113df80498c lindent marty <marty> parents: 70 diff changeset	822 {
0113df80498c lindent marty <marty> parents: 70 diff changeset	823 /* Lifted from jffs2 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	824
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	825 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	826 unsigned char *pg_buf;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	827 int ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	828
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	829 yaffs_Device *dev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	830
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	831 T(YAFFS_TRACE_OS,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	832 (TSTR("yaffs_readpage_nolock at %08x, size %08x\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	833 (unsigned)(pg->index << PAGE_CACHE_SHIFT),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	834 (unsigned)PAGE_CACHE_SIZE));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	835
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	836 obj = yaffs_DentryToObject(f->f_dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	837
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	838 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	839
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	840 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	841 BUG_ON(!PageLocked(pg));
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	842 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	843 if (!PageLocked(pg))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	844 PAGE_BUG(pg);
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	845 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	846
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	847 pg_buf = kmap(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	848 /* FIXME: Can kmap fail? */
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	849
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	850 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	851
276 319f24142eed One whitespace fix wookey <wookey> parents: 273 diff changeset	852 ret = yaffs_ReadDataFromFile(obj, pg_buf,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	853 pg->index << PAGE_CACHE_SHIFT,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	854 PAGE_CACHE_SIZE);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	855
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	856 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	857
0113df80498c lindent marty <marty> parents: 70 diff changeset	858 if (ret >= 0)
0113df80498c lindent marty <marty> parents: 70 diff changeset	859 ret = 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	860
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	861 if (ret) {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	862 ClearPageUptodate(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	863 SetPageError(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	864 } else {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	865 SetPageUptodate(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	866 ClearPageError(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	867 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	868
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	869 flush_dcache_page(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	870 kunmap(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	871
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	872 T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage_nolock done\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	873 return ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	874 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	875
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	876 static int yaffs_readpage_unlock(struct file f, struct page pg)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	877 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	878 int ret = yaffs_readpage_nolock(f, pg);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	879 UnlockPage(pg);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	880 return ret;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	881 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	882
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	883 static int yaffs_readpage(struct file f, struct page pg)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	884 {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	885 int ret;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	886
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	887 T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage\n")));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	888 ret=yaffs_readpage_unlock(f, pg);
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	889 T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage done\n")));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	890 return ret;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	891 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	892
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	893 /* writepage inspired by/stolen from smbfs */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	894
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	895 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	896 static int yaffs_writepage(struct page page, struct writeback_control wbc)
7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	897 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	898 static int yaffs_writepage(struct page *page)
23 7942535c12c6 Apply Luc's patches charles <charles> parents: 22 diff changeset	899 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	900 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	901 struct address_space *mapping = page->mapping;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	902 struct inode *inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	903 unsigned long end_index;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	904 char *buffer;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	905 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	906 int nWritten = 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	907 unsigned nBytes;
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	908 loff_t i_size;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	909
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	910 if (!mapping)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	911 BUG();
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	912 inode = mapping->host;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	913 if (!inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	914 BUG();
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	915 i_size = i_size_read(inode);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	916
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	917 end_index = i_size >> PAGE_CACHE_SHIFT;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	918
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	919 if(page->index < end_index)
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	920 nBytes = PAGE_CACHE_SIZE;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	921 else {
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	922 nBytes = i_size & (PAGE_CACHE_SIZE -1);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	923
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	924 if (page->index > end_index \|\| !nBytes) {
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	925 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	926 (TSTR("yaffs_writepage at %08x, inode size = %08x!!!\n"),
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	927 (unsigned)(page->index << PAGE_CACHE_SHIFT),
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	928 (unsigned)inode->i_size));
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	929 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	930 (TSTR(" -> don't care!!\n")));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	931
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	932 zero_user_segment(page,0,PAGE_CACHE_SIZE);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	933 set_page_writeback(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	934 unlock_page(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	935 end_page_writeback(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	936 return 0;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	937 }
67 cb8afec5ad31 Fix an error in writepage when a file is extended. luc <luc> parents: 61 diff changeset	938 }
cb8afec5ad31 Fix an error in writepage when a file is extended. luc <luc> parents: 61 diff changeset	939
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	940 if(nBytes != PAGE_CACHE_SIZE)
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	941 zero_user_segment(page,nBytes,PAGE_CACHE_SIZE);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	942
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	943 get_page(page);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	944
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	945 buffer = kmap(page);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	946
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	947 obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	948 yaffs_GrossLock(obj->myDev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	949
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	950 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	951 (TSTR("yaffs_writepage at %08x, size %08x\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	952 (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	953 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	954 (TSTR("writepag0: obj = %05x, ino = %05x\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	955 (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	956
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	957 nWritten = yaffs_WriteDataToFile(obj, buffer,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	958 page->index << PAGE_CACHE_SHIFT, nBytes, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	959
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	960 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	961 (TSTR("writepag1: obj = %05x, ino = %05x\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	962 (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
67 cb8afec5ad31 Fix an error in writepage when a file is extended. luc <luc> parents: 61 diff changeset	963
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	964 yaffs_GrossUnlock(obj->myDev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	965
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	966 kunmap(page);
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	967 set_page_writeback(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	968 unlock_page(page);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	969 end_page_writeback(page);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	970 put_page(page);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	971
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	972 return (nWritten == nBytes) ? 0 : -ENOSPC;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	973 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	974
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	975
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	976 #if (YAFFS_USE_WRITE_BEGIN_END > 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	977 static int yaffs_write_begin(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	978 loff_t pos, unsigned len, unsigned flags,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	979 struct page pagep, void fsdata)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	980 {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	981 struct page *pg = NULL;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	982 pgoff_t index = pos >> PAGE_CACHE_SHIFT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	983
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	984 int ret = 0;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	985 int space_held = 0;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	986
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	987 /* Get a page */
289 850410979014 More recent 2.6.8 versions need this change too charles <charles> parents: 280 diff changeset	988 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	989 pg = grab_cache_page_write_begin(mapping, index, flags);
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	990 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	991 pg = __grab_cache_page(mapping, index);
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	992 #endif
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	993
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	994 *pagep = pg;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	995 if (!pg) {
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	996 ret = -ENOMEM;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	997 goto out;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	998 }
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	999 T(YAFFS_TRACE_OS,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1000 (TSTR("start yaffs_write_begin index %d(%x) uptodate %d\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1001 (int)index,(int)index,Page_Uptodate(pg) ? 1 : 0));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1002
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1003 /* Get fs space */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1004 space_held = yaffs_hold_space(filp);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1005
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1006 if (!space_held) {
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1007 ret = -ENOSPC;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1008 goto out;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1009 }
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1010
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1011 /* Update page if required */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1012
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1013 if (!Page_Uptodate(pg))
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1014 ret = yaffs_readpage_nolock(filp, pg);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1015
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1016 if (ret)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1017 goto out;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1018
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1019 /* Happy path return */
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1020 T(YAFFS_TRACE_OS, (TSTR("end yaffs_write_begin - ok\n")));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1021
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1022 return 0;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1023
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1024 out:
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1025 T(YAFFS_TRACE_OS,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1026 (TSTR("end yaffs_write_begin fail returning %d\n"), ret));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1027 if (space_held)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1028 yaffs_release_space(filp);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1029 if (pg) {
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1030 unlock_page(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1031 page_cache_release(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1032 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1033 return ret;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1034 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1035
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1036 #else
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1037
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1038 static int yaffs_prepare_write(struct file f, struct page pg,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1039 unsigned offset, unsigned to)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1040 {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1041 T(YAFFS_TRACE_OS, (TSTR("yaffs_prepair_write\n")));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1042
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1043 if (!Page_Uptodate(pg))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1044 return yaffs_readpage_nolock(f, pg);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1045 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1046 }
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1047 #endif
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1048
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1049 #if (YAFFS_USE_WRITE_BEGIN_END > 0)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1050 static int yaffs_write_end(struct file filp, struct address_space mapping,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1051 loff_t pos, unsigned len, unsigned copied,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1052 struct page pg, void fsdadata)
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1053 {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1054 int ret = 0;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1055 void addr, kva;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1056 uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1057
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1058 kva = kmap(pg);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1059 addr = kva + offset_into_page;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1060
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1061 T(YAFFS_TRACE_OS,
407 36a72b45da7c yaffs: Clean up 64-bit compilation Charles Manning <cdhmanning@gmail.com> parents: 404 diff changeset	1062 ("yaffs_write_end addr %p pos %x nBytes %d\n",
36a72b45da7c yaffs: Clean up 64-bit compilation Charles Manning <cdhmanning@gmail.com> parents: 404 diff changeset	1063 addr,(unsigned)pos, copied));
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1064
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1065 ret = yaffs_file_write(filp, addr, copied, &pos);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1066
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1067 if (ret != copied) {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1068 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1069 (TSTR("yaffs_write_end not same size ret %d copied %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1070 ret, copied));
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1071 SetPageError(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1072 } else {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1073 /* Nothing */
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1074 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1075
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1076 kunmap(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1077
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1078 yaffs_release_space(filp);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1079 unlock_page(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1080 page_cache_release(pg);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1081 return ret;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1082 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1083 #else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1084
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1085 static int yaffs_commit_write(struct file f, struct page pg, unsigned offset,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1086 unsigned to)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1087 {
218 fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1088 void addr, kva;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1089
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1090 loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1091 int nBytes = to - offset;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1092 int nWritten;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1093
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1094 unsigned spos = pos;
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1095 unsigned saddr;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1096
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1097 kva = kmap(pg);
218 fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1098 addr = kva + offset;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1099
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1100 saddr = (unsigned) addr;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1101
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1102 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1103 (TSTR("yaffs_commit_write addr %x pos %x nBytes %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1104 saddr, spos, nBytes));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1105
0113df80498c lindent marty <marty> parents: 70 diff changeset	1106 nWritten = yaffs_file_write(f, addr, nBytes, &pos);
0113df80498c lindent marty <marty> parents: 70 diff changeset	1107
0113df80498c lindent marty <marty> parents: 70 diff changeset	1108 if (nWritten != nBytes) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1109 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1110 (TSTR("yaffs_commit_write not same size nWritten %d nBytes %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1111 nWritten, nBytes));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1112 SetPageError(pg);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1113 } else {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1114 /* Nothing */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1115 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1116
218 fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1117 kunmap(pg);
fb0b6002a827 Add kmap for highmem access charles <charles> parents: 212 diff changeset	1118
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1119 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1120 (TSTR("yaffs_commit_write returning %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1121 nWritten == nBytes ? 0 : nWritten));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1122
113 325f5d3a757c Handle partial writes more gracefully: return partial byte counts, return tpoynor <tpoynor> parents: 112 diff changeset	1123 return nWritten == nBytes ? 0 : nWritten;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1124 }
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1125 #endif
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1126
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1127
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1128 static void yaffs_FillInodeFromObject(struct inode inode, yaffs_Object obj)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1129 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1130 if (inode && obj) {
139 26d7d8772aa2 Make sure mode is sane charles <charles> parents: 137 diff changeset	1131
26d7d8772aa2 Make sure mode is sane charles <charles> parents: 137 diff changeset	1132
26d7d8772aa2 Make sure mode is sane charles <charles> parents: 137 diff changeset	1133 /* Check mode against the variant type and attempt to repair if broken. */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1134 __u32 mode = obj->yst_mode;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1135 switch (obj->variantType) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1136 case YAFFS_OBJECT_TYPE_FILE:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1137 if (!S_ISREG(mode)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1138 obj->yst_mode &= ~S_IFMT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1139 obj->yst_mode \|= S_IFREG;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1140 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1141
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1142 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1143 case YAFFS_OBJECT_TYPE_SYMLINK:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1144 if (!S_ISLNK(mode)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1145 obj->yst_mode &= ~S_IFMT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1146 obj->yst_mode \|= S_IFLNK;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1147 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1148
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1149 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1150 case YAFFS_OBJECT_TYPE_DIRECTORY:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1151 if (!S_ISDIR(mode)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1152 obj->yst_mode &= ~S_IFMT;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1153 obj->yst_mode \|= S_IFDIR;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1154 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1155
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1156 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1157 case YAFFS_OBJECT_TYPE_UNKNOWN:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1158 case YAFFS_OBJECT_TYPE_HARDLINK:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1159 case YAFFS_OBJECT_TYPE_SPECIAL:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1160 default:
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1161 /* TODO? */
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1162 break;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1163 }
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1164
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1165 inode->i_flags \|= S_NOATIME;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1166
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1167 inode->i_ino = obj->objectId;
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1168 inode->i_mode = obj->yst_mode;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1169 inode->i_uid = obj->yst_uid;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1170 inode->i_gid = obj->yst_gid;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1171 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1172 inode->i_blksize = inode->i_sb->s_blocksize;
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	1173 #endif
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1174 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1175
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1176 inode->i_rdev = old_decode_dev(obj->yst_rdev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1177 inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1178 inode->i_atime.tv_nsec = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1179 inode->i_mtime.tv_sec = (time_t) obj->yst_mtime;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1180 inode->i_mtime.tv_nsec = 0;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1181 inode->i_ctime.tv_sec = (time_t) obj->yst_ctime;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1182 inode->i_ctime.tv_nsec = 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1183 #else
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1184 inode->i_rdev = obj->yst_rdev;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1185 inode->i_atime = obj->yst_atime;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1186 inode->i_mtime = obj->yst_mtime;
0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1187 inode->i_ctime = obj->yst_ctime;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1188 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1189 inode->i_size = yaffs_GetObjectFileLength(obj);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1190 inode->i_blocks = (inode->i_size + 511) >> 9;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1191
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1192 inode->i_nlink = yaffs_GetObjectLinkCount(obj);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1193
0113df80498c lindent marty <marty> parents: 70 diff changeset	1194 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1195 (TSTR("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1196 inode->i_mode, inode->i_uid, inode->i_gid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1197 (int)inode->i_size, atomic_read(&inode->i_count)));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1198
0113df80498c lindent marty <marty> parents: 70 diff changeset	1199 switch (obj->yst_mode & S_IFMT) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1200 default: /* fifo, device or socket */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1201 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1202 init_special_inode(inode, obj->yst_mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1203 old_decode_dev(obj->yst_rdev));
12 e0fa36dd109b Fix 2.6 special inodes charles <charles> parents: 10 diff changeset	1204 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1205 init_special_inode(inode, obj->yst_mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1206 (dev_t) (obj->yst_rdev));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1207 #endif
0113df80498c lindent marty <marty> parents: 70 diff changeset	1208 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1209 case S_IFREG: /* file */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1210 inode->i_op = &yaffs_file_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1211 inode->i_fop = &yaffs_file_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1212 inode->i_mapping->a_ops =
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1213 &yaffs_file_address_operations;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1214 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1215 case S_IFDIR: /* directory */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1216 inode->i_op = &yaffs_dir_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1217 inode->i_fop = &yaffs_dir_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1218 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1219 case S_IFLNK: /* symlink */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1220 inode->i_op = &yaffs_symlink_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1221 break;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1222 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1223
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	1224 yaffs_InodeToObjectLV(inode) = obj;
8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	1225
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1226 obj->myInode = inode;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1227
0113df80498c lindent marty <marty> parents: 70 diff changeset	1228 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1229 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1230 (TSTR("yaffs_FileInode invalid parameters\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1231 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1232
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1233 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1234
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1235 struct inode yaffs_get_inode(struct super_block sb, int mode, int dev,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1236 yaffs_Object *obj)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1237 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1238 struct inode *inode;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1239
0113df80498c lindent marty <marty> parents: 70 diff changeset	1240 if (!sb) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1241 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1242 (TSTR("yaffs_get_inode for NULL super_block!!\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1243 return NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1244
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1245 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1246
0113df80498c lindent marty <marty> parents: 70 diff changeset	1247 if (!obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1248 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1249 (TSTR("yaffs_get_inode for NULL object!!\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1250 return NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1251
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1252 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1253
0113df80498c lindent marty <marty> parents: 70 diff changeset	1254 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1255 (TSTR("yaffs_get_inode for object %d\n"), obj->objectId));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1256
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1257 inode = Y_IGET(sb, obj->objectId);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1258 if (IS_ERR(inode))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1259 return NULL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1260
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1261 /* NB Side effect: iget calls back to yaffs_read_inode(). */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1262 /* iget also increments the inode's i_count */
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1263 /* NB You can't be holding grossLock or deadlock will happen! */
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1264
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1265 return inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1266 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1267
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1268 static ssize_t yaffs_file_write(struct file f, const char buf, size_t n,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1269 loff_t *pos)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1270 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1271 yaffs_Object *obj;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1272 int nWritten, ipos;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1273 struct inode *inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1274 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1275
0113df80498c lindent marty <marty> parents: 70 diff changeset	1276 obj = yaffs_DentryToObject(f->f_dentry);
0113df80498c lindent marty <marty> parents: 70 diff changeset	1277
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1278 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1279
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1280 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1281
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1282 inode = f->f_dentry->d_inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1283
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1284 if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1285 ipos = inode->i_size;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1286 else
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1287 ipos = *pos;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1288
5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1289 if (!obj)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1290 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1291 (TSTR("yaffs_file_write: hey obj is null!\n")));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1292 else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1293 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1294 (TSTR("yaffs_file_write about to write writing %u(%x) bytes"
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1295 "to object %d at %d(%x)\n"),
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1296 (unsigned) n, (unsigned) n, obj->objectId, ipos,ipos));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1297
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1298 nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1299
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1300 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1301 (TSTR("yaffs_file_write: %d(%x) bytes written\n"),
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1302 (unsigned )n,(unsigned)n));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1303
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1304 if (nWritten > 0) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1305 ipos += nWritten;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1306 *pos = ipos;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1307 if (ipos > inode->i_size) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1308 inode->i_size = ipos;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1309 inode->i_blocks = (ipos + 511) >> 9;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1310
0113df80498c lindent marty <marty> parents: 70 diff changeset	1311 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1312 (TSTR("yaffs_file_write size updated to %d bytes, "
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1313 "%d blocks\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1314 ipos, (int)(inode->i_blocks)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1315 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1316
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1317 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1318 yaffs_GrossUnlock(dev);
278 ba8a7124dc1f Fix -ENOSPC to work properly with zero length writes charles <charles> parents: 277 diff changeset	1319 return (nWritten == 0) && (n > 0) ? -ENOSPC : nWritten;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1320 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1321
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1322 /* Space holding and freeing is done to ensure we have space available for write_begin/end */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1323 /* For now we just assume few parallel writes and check against a small number. */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1324 /* Todo: need to do this with a counter to handle parallel reads better */
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1325
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1326 static ssize_t yaffs_hold_space(struct file *f)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1327 {
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1328 yaffs_Object *obj;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1329 yaffs_Device *dev;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1330
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1331 int nFreeChunks;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1332
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1333
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1334 obj = yaffs_DentryToObject(f->f_dentry);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1335
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1336 dev = obj->myDev;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1337
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1338 yaffs_GrossLock(dev);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1339
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1340 nFreeChunks = yaffs_GetNumberOfFreeChunks(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1341
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1342 yaffs_GrossUnlock(dev);
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1343
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1344 return (nFreeChunks > 20) ? 1 : 0;
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1345 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1346
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1347 static void yaffs_release_space(struct file *f)
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1348 {
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1349 yaffs_Object *obj;
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1350 yaffs_Device *dev;
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1351
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1352
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1353 obj = yaffs_DentryToObject(f->f_dentry);
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1354
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1355 dev = obj->myDev;
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1356
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1357 yaffs_GrossLock(dev);
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1358
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1359
37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1360 yaffs_GrossUnlock(dev);
253 6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1361 }
6dd9ed6bed42 Change Linux glue code to work with 2.6.28 charles <charles> parents: 249 diff changeset	1362
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1363
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1364 static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1365 {
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1366 long long retval;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1367
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1368 lock_kernel();
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1369
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1370 switch (origin){
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1371 case 2:
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1372 offset += i_size_read(file->f_path.dentry->d_inode);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1373 break;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1374 case 1:
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1375 offset += file->f_pos;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1376 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1377 retval = -EINVAL;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1378
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1379 if (offset >= 0){
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1380 if (offset != file->f_pos)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1381 file->f_pos = offset;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1382
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1383 retval = offset;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1384 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1385 unlock_kernel();
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1386 return retval;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1387 }
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1388
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1389
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1390 static int yaffs_readdir(struct file f, void dirent, filldir_t filldir)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1391 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1392 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1393 yaffs_Device *dev;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1394 struct yaffs_SearchContext *sc;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1395 struct inode *inode = f->f_dentry->d_inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1396 unsigned long offset, curoffs;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1397 yaffs_Object *l;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1398 int retVal = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1399
0113df80498c lindent marty <marty> parents: 70 diff changeset	1400 char name[YAFFS_MAX_NAME_LENGTH + 1];
0113df80498c lindent marty <marty> parents: 70 diff changeset	1401
0113df80498c lindent marty <marty> parents: 70 diff changeset	1402 obj = yaffs_DentryToObject(f->f_dentry);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1403 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1404
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1405 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1406
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1407 yaffs_DeviceToContext(dev)->readdirProcess = current;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1408
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1409 offset = f->f_pos;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1410
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1411 sc = yaffs_NewSearch(obj);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1412 if(!sc){
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1413 retVal = -ENOMEM;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1414 goto unlock_out;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1415 }
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1416
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1417 T(YAFFS_TRACE_OS, (TSTR("yaffs_readdir: starting at %d\n"), (int)offset));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1418
0113df80498c lindent marty <marty> parents: 70 diff changeset	1419 if (offset == 0) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1420 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1421 (TSTR("yaffs_readdir: entry . ino %d \n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1422 (int)inode->i_ino));
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1423 yaffs_GrossUnlock(dev);
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1424 if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1425 goto out;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1426 yaffs_GrossLock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1427 offset++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1428 f->f_pos++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1429 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1430 if (offset == 1) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1431 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1432 (TSTR("yaffs_readdir: entry .. ino %d \n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1433 (int)f->f_dentry->d_parent->d_inode->i_ino));
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1434 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1435 if (filldir(dirent, "..", 2, offset,
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1436 f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1437 goto out;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1438 yaffs_GrossLock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1439 offset++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1440 f->f_pos++;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1441 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1442
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1443 curoffs = 1;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1444
117 790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1445 /* If the directory has changed since the open or last call to
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1446 readdir, rewind to after the 2 canned entries. */
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1447 if (f->f_version != inode->i_version) {
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1448 offset = 2;
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1449 f->f_pos = offset;
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1450 f->f_version = inode->i_version;
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1451 }
790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1452
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1453 while(sc->nextReturn){
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1454 curoffs++;
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1455 l = sc->nextReturn;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1456 if (curoffs >= offset) {
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1457 int this_inode = yaffs_GetObjectInode(l);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1458 int this_type = yaffs_GetObjectType(l);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1459
0113df80498c lindent marty <marty> parents: 70 diff changeset	1460 yaffs_GetObjectName(l, name,
0113df80498c lindent marty <marty> parents: 70 diff changeset	1461 YAFFS_MAX_NAME_LENGTH + 1);
0113df80498c lindent marty <marty> parents: 70 diff changeset	1462 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1463 (TSTR("yaffs_readdir: %s inode %d\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1464 name, yaffs_GetObjectInode(l)));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1465
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1466 yaffs_GrossUnlock(dev);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1467
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1468 if (filldir(dirent,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1469 name,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1470 strlen(name),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1471 offset,
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1472 this_inode,
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1473 this_type) < 0)
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1474 goto out;
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1475
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1476 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1477
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1478 offset++;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1479 f->f_pos++;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1480 }
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1481 yaffs_SearchAdvance(sc);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1482 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1483
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1484 unlock_out:
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1485 yaffs_DeviceToContext(dev)->readdirProcess = NULL;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1486
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1487 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1488 out:
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1489 yaffs_EndSearch(sc);
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1490
be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	1491 return retVal;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1492 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1493
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1494
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1495
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1496 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1497 * File creation. Allocate an inode, and we're done..
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1498 */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1499
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1500 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1501 #define YCRED(x) x
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1502 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1503 #define YCRED(x) (x->cred)
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1504 #endif
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1505
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1506 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1507 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1508 dev_t rdev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1509 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1510 static int yaffs_mknod(struct inode dir, struct dentry dentry, int mode,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1511 int rdev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1512 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1513 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1514 struct inode *inode;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1515
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1516 yaffs_Object *obj = NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1517 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1518
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1519 yaffs_Object *parent = yaffs_InodeToObject(dir);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1520
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1521 int error = -ENOSPC;
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1522 uid_t uid = YCRED(current)->fsuid;
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1523 gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	1524
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1525 if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
133 2f69a6372caf Fix SGID problem charles <charles> parents: 131 diff changeset	1526 mode \|= S_ISGID;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1527
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1528 if (parent) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1529 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1530 (TSTR("yaffs_mknod: parent object %d type %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1531 parent->objectId, parent->variantType));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1532 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1533 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1534 (TSTR("yaffs_mknod: could not get parent object\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1535 return -EPERM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1536 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1537
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1538 T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making oject for %s, "
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1539 "mode %x dev %x\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1540 dentry->d_name.name, mode, rdev));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1541
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1542 dev = parent->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1543
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1544 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1545
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1546 switch (mode & S_IFMT) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1547 default:
0113df80498c lindent marty <marty> parents: 70 diff changeset	1548 /* Special (socket, fifo, device...) */
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1549 T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making special\n")));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1550 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1551 obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1552 gid, old_encode_dev(rdev));
12 e0fa36dd109b Fix 2.6 special inodes charles <charles> parents: 10 diff changeset	1553 #else
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1554 obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1555 gid, rdev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1556 #endif
0113df80498c lindent marty <marty> parents: 70 diff changeset	1557 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1558 case S_IFREG: /* file */
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1559 T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making file\n")));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1560 obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1561 gid);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1562 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1563 case S_IFDIR: /* directory */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1564 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1565 (TSTR("yaffs_mknod: making directory\n")));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1566 obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1567 uid, gid);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1568 break;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1569 case S_IFLNK: /* symlink */
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1570 T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making symlink\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1571 obj = NULL; /* Do we ever get here? */
0113df80498c lindent marty <marty> parents: 70 diff changeset	1572 break;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1573 }
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	1574
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1575 /* Can not call yaffs_get_inode() with gross lock held */
5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	1576 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1577
0113df80498c lindent marty <marty> parents: 70 diff changeset	1578 if (obj) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1579 inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1580 d_instantiate(dentry, inode);
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1581 update_dir_time(dir);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1582 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1583 (TSTR("yaffs_mknod created object %d count = %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1584 obj->objectId, atomic_read(&inode->i_count)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1585 error = 0;
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1586 yaffs_FillInodeFromObject(dir,parent);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1587 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1588 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1589 (TSTR("yaffs_mknod failed making object\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1590 error = -ENOMEM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1591 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1592
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1593 return error;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1594 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1595
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1596 static int yaffs_mkdir(struct inode dir, struct dentry dentry, int mode)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1597 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1598 int retVal;
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1599 T(YAFFS_TRACE_OS, (TSTR("yaffs_mkdir\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1600 retVal = yaffs_mknod(dir, dentry, mode \| S_IFDIR, 0);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1601 return retVal;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1602 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1603
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1604 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1605 static int yaffs_create(struct inode dir, struct dentry dentry, int mode,
0113df80498c lindent marty <marty> parents: 70 diff changeset	1606 struct nameidata *n)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1607 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1608 static int yaffs_create(struct inode dir, struct dentry dentry, int mode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1609 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1610 {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1611 T(YAFFS_TRACE_OS,(TSTR("yaffs_create\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1612 return yaffs_mknod(dir, dentry, mode \| S_IFREG, 0);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1613 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1614
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1615 static int yaffs_unlink(struct inode dir, struct dentry dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1616 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1617 int retVal;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1618
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1619 yaffs_Device *dev;
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1620 yaffs_Object *obj;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1621
0113df80498c lindent marty <marty> parents: 70 diff changeset	1622 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1623 (TSTR("yaffs_unlink %d:%s\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1624 (int)(dir->i_ino),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1625 dentry->d_name.name));
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1626 obj = yaffs_InodeToObject(dir);
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1627 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1628
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1629 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1630
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	1631 retVal = yaffs_Unlink(obj, dentry->d_name.name);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1632
0113df80498c lindent marty <marty> parents: 70 diff changeset	1633 if (retVal == YAFFS_OK) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1634 dentry->d_inode->i_nlink--;
117 790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1635 dir->i_version++;
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1636 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1637 mark_inode_dirty(dentry->d_inode);
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1638 update_dir_time(dir);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1639 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1640 }
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	1641 yaffs_GrossUnlock(dev);
117 790b53277ea9 Add Todds readdir rewind mechanism charles <charles> parents: 115 diff changeset	1642 return -ENOTEMPTY;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1643 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1644
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1645 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1646 * Create a link...
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1647 */
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1648 static int yaffs_link(struct dentry old_dentry, struct inode dir,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1649 struct dentry *dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1650 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1651 struct inode *inode = old_dentry->d_inode;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1652 yaffs_Object *obj = NULL;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1653 yaffs_Object *link = NULL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1654 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1655
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1656 T(YAFFS_TRACE_OS, (TSTR("yaffs_link\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1657
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1658 obj = yaffs_InodeToObject(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1659 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1660
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1661 yaffs_GrossLock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1662
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	1663 if (!S_ISDIR(inode->i_mode)) /* Don't link directories */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1664 link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1665 obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1666
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1667 if (link) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1668 old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1669 d_instantiate(dentry, old_dentry->d_inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1670 atomic_inc(&old_dentry->d_inode->i_count);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1671 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1672 (TSTR("yaffs_link link count %d i_count %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1673 old_dentry->d_inode->i_nlink,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1674 atomic_read(&old_dentry->d_inode->i_count)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1675 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1676
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1677 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1678
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1679 if (link){
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1680 update_dir_time(dir);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1681 return 0;
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1682 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1683
0113df80498c lindent marty <marty> parents: 70 diff changeset	1684 return -EPERM;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1685 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1686
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1687 static int yaffs_symlink(struct inode dir, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1688 const char *symname)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1689 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1690 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1691 yaffs_Device *dev;
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1692 uid_t uid = YCRED(current)->fsuid;
1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	1693 gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1694
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1695 T(YAFFS_TRACE_OS, (TSTR("yaffs_symlink\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1696
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1697 dev = yaffs_InodeToObject(dir)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1698 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1699 obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1700 S_IFLNK \| S_IRWXUGO, uid, gid, symname);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1701 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1702
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1703 if (obj) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1704 struct inode *inode;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1705
22 0b57027b96fe Some improvements to garbage collection and st_xxx to yst_xxx changes charles <charles> parents: 19 diff changeset	1706 inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1707 d_instantiate(dentry, inode);
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1708 update_dir_time(dir);
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1709 T(YAFFS_TRACE_OS, (TSTR("symlink created OK\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1710 return 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1711 } else {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1712 T(YAFFS_TRACE_OS, (TSTR("symlink not created\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1713 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1714
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1715 return -ENOMEM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1716 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1717
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1718 static int yaffs_sync_object(struct file file, struct dentry dentry,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1719 int datasync)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1720 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1721
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1722 yaffs_Object *obj;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1723 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1724
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1725 obj = yaffs_DentryToObject(dentry);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1726
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1727 dev = obj->myDev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1728
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1729 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1730 (TSTR("yaffs_sync_object\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1731 yaffs_GrossLock(dev);
291 b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1732 yaffs_FlushFile(obj, 1, datasync);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1733 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1734 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1735 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1736
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1737 /*
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1738 * The VFS layer already does all the dentry stuff for rename.
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1739 *
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1740 * NB: POSIX says you can rename an object over an old object of the same name
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1741 */
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1742 static int yaffs_rename(struct inode old_dir, struct dentry old_dentry,
0113df80498c lindent marty <marty> parents: 70 diff changeset	1743 struct inode new_dir, struct dentry new_dentry)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1744 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1745 yaffs_Device *dev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1746 int retVal = YAFFS_FAIL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1747 yaffs_Object *target;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1748
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1749 T(YAFFS_TRACE_OS, (TSTR("yaffs_rename\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1750 dev = yaffs_InodeToObject(old_dir)->myDev;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1751
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1752 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1753
0113df80498c lindent marty <marty> parents: 70 diff changeset	1754 /* Check if the target is an existing directory that is not empty. */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1755 target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1756 new_dentry->d_name.name);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1757
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1758
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1759
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1760 if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1761 !ylist_empty(&target->variant.directoryVariant.children)) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1762
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1763 T(YAFFS_TRACE_OS, (TSTR("target is non-empty dir\n")));
83 409ff4ae7a4a Fix rename over problem charles <charles> parents: 76 diff changeset	1764
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1765 retVal = YAFFS_FAIL;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1766 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	1767 /* Now does unlinking internally using shadowing mechanism */
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1768 T(YAFFS_TRACE_OS, (TSTR("calling yaffs_RenameObject\n")));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1769
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1770 retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1771 old_dentry->d_name.name,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1772 yaffs_InodeToObject(new_dir),
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1773 new_dentry->d_name.name);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1774 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1775 yaffs_GrossUnlock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1776
0113df80498c lindent marty <marty> parents: 70 diff changeset	1777 if (retVal == YAFFS_OK) {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1778 if (target) {
88 0f3625990b22 Fix problem introduced my mv over fix charles <charles> parents: 83 diff changeset	1779 new_dentry->d_inode->i_nlink--;
0f3625990b22 Fix problem introduced my mv over fix charles <charles> parents: 83 diff changeset	1780 mark_inode_dirty(new_dentry->d_inode);
0f3625990b22 Fix problem introduced my mv over fix charles <charles> parents: 83 diff changeset	1781 }
280 6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1782
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1783 update_dir_time(old_dir);
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1784 if(old_dir != new_dir)
6353980fff95 Get directory mtime to update correctly charles <charles> parents: 278 diff changeset	1785 update_dir_time(new_dir);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1786 return 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1787 } else {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1788 return -ENOTEMPTY;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1789 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1790 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1791
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1792 static int yaffs_setattr(struct dentry dentry, struct iattr attr)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1793 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1794 struct inode *inode = dentry->d_inode;
350 c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1795 int error = 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1796 yaffs_Device *dev;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1797
0113df80498c lindent marty <marty> parents: 70 diff changeset	1798 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1799 (TSTR("yaffs_setattr of object %d\n"),
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1800 yaffs_InodeToObject(inode)->objectId));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1801
350 c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1802 /* Fail if a requested resize >= 2GB */
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1803 if (attr->ia_valid & ATTR_SIZE &&
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1804 (attr->ia_size >> 31))
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1805 error = -EINVAL;
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1806
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1807 if (error == 0)
c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1808 error = inode_change_ok(inode, attr);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1809 if (error == 0) {
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1810 int result;
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1811 if (!error){
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1812 error = inode_setattr(inode, attr);
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1813 T(YAFFS_TRACE_OS,(TSTR("inode_setattr called\n")));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1814 if (attr->ia_valid & ATTR_SIZE)
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1815 truncate_inode_pages(&inode->i_data,attr->ia_size);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1816 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1817 dev = yaffs_InodeToObject(inode)->myDev;
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1818 if (attr->ia_valid & ATTR_SIZE){
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1819 T(YAFFS_TRACE_OS,(TSTR("resize to %d(%x)\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1820 (int)(attr->ia_size),(int)(attr->ia_size)));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1821 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1822 yaffs_GrossLock(dev);
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1823 result = yaffs_SetAttributes(yaffs_InodeToObject(inode), attr);
56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1824 if(result == YAFFS_OK) {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1825 error = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1826 } else {
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1827 error = -EPERM;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1828 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1829 yaffs_GrossUnlock(dev);
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1830
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1831 }
350 c927f461f731 Prevent resizes bigger than 2GBytes charles <charles> parents: 346 diff changeset	1832
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1833 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1834 (TSTR("yaffs_setattr done returning %d\n"),error));
332 56d04ee60d06 FSX runs much better with this charles <charles> parents: 321 diff changeset	1835
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1836 return error;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1837 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1838
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1839 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1840 static int yaffs_statfs(struct dentry dentry, struct kstatfs buf)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1841 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1842 yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1843 struct super_block *sb = dentry->d_sb;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1844 #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1845 static int yaffs_statfs(struct super_block sb, struct kstatfs buf)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1846 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1847 yaffs_Device *dev = yaffs_SuperToDevice(sb);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1848 #else
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1849 static int yaffs_statfs(struct super_block sb, struct statfs buf)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1850 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	1851 yaffs_Device *dev = yaffs_SuperToDevice(sb);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1852 #endif
15 f422dc67a33c Fix df size problem charles <charles> parents: 12 diff changeset	1853
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1854 T(YAFFS_TRACE_OS, (TSTR("yaffs_statfs\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1855
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1856 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1857
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1858 buf->f_type = YAFFS_MAGIC;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1859 buf->f_bsize = sb->s_blocksize;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1860 buf->f_namelen = 255;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1861
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1862 if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) {
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1863 /* Do this if chunk size is not a power of 2 */
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1864
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1865 uint64_t bytesInDev;
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1866 uint64_t bytesFree;
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1867
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1868 bytesInDev = ((uint64_t)((dev->param.endBlock - dev->param.startBlock + 1))) *
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1869 ((uint64_t)(dev->param.nChunksPerBlock * dev->nDataBytesPerChunk));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1870
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1871 do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1872 buf->f_blocks = bytesInDev;
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1873
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1874 bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) *
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1875 ((uint64_t)(dev->nDataBytesPerChunk));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1876
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1877 do_div(bytesFree, sb->s_blocksize);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1878
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1879 buf->f_bfree = bytesFree;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1880
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	1881 } else if (sb->s_blocksize > dev->nDataBytesPerChunk) {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1882
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1883 buf->f_blocks =
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1884 (dev->param.endBlock - dev->param.startBlock + 1) *
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1885 dev->param.nChunksPerBlock /
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1886 (sb->s_blocksize / dev->nDataBytesPerChunk);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1887 buf->f_bfree =
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1888 yaffs_GetNumberOfFreeChunks(dev) /
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1889 (sb->s_blocksize / dev->nDataBytesPerChunk);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1890 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1891 buf->f_blocks =
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1892 (dev->param.endBlock - dev->param.startBlock + 1) *
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	1893 dev->param.nChunksPerBlock *
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1894 (dev->nDataBytesPerChunk / sb->s_blocksize);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1895
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1896 buf->f_bfree =
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1897 yaffs_GetNumberOfFreeChunks(dev) *
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1898 (dev->nDataBytesPerChunk / sb->s_blocksize);
15 f422dc67a33c Fix df size problem charles <charles> parents: 12 diff changeset	1899 }
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	1900
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1901 buf->f_files = 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1902 buf->f_ffree = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	1903 buf->f_bavail = buf->f_bfree;
0113df80498c lindent marty <marty> parents: 70 diff changeset	1904
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1905 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1906 return 0;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1907 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	1908
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1909
291 b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1910
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1911 static void yaffs_FlushInodes(struct super_block *sb)
291 b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1912 {
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1913 struct inode *iptr;
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1914 yaffs_Object *obj;
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1915
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1916 list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1917 obj = yaffs_InodeToObject(iptr);
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1918 if(obj){
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1919 T(YAFFS_TRACE_OS, (TSTR("flushing obj %d\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1920 obj->objectId));
291 b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1921 yaffs_FlushFile(obj,1,0);
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1922 }
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1923 }
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1924 }
b2333fb73eea Improve sync to flush metadata charles <charles> parents: 289 diff changeset	1925
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1926
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1927 static void yaffs_FlushSuperBlock(struct super_block *sb, int do_checkpoint)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1928 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1929 yaffs_Device *dev = yaffs_SuperToDevice(sb);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1930 if(!dev)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1931 return;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1932
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1933 yaffs_FlushInodes(sb);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1934 yaffs_UpdateDirtyDirectories(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1935 yaffs_FlushEntireDeviceCache(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1936 if(do_checkpoint)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1937 yaffs_CheckpointSave(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1938 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1939
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1940
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1941 static unsigned yaffs_bg_gc_urgency(yaffs_Device *dev)
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1942 {
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1943 unsigned erasedChunks = dev->nErasedBlocks * dev->param.nChunksPerBlock;
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1944 struct yaffs_LinuxContext *context = yaffs_DeviceToContext(dev);
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1945 unsigned scatteredFree = 0; /* Free chunks not in an erased block */
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1946
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1947 if(erasedChunks < dev->nFreeChunks)
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1948 scatteredFree = (dev->nFreeChunks - erasedChunks);
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1949
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1950 if(!context->bgRunning)
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1951 return 0;
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1952 else if(scatteredFree < (dev->param.nChunksPerBlock * 2))
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1953 return 0;
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1954 else if(erasedChunks > dev->nFreeChunks/2)
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1955 return 0;
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1956 else if(erasedChunks > dev->nFreeChunks/4)
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1957 return 1;
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1958 else
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1959 return 2;
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1960 }
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1961
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1962 static int yaffs_do_sync_fs(struct super_block *sb,
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1963 int request_checkpoint)
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1964 {
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1965
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1966 yaffs_Device *dev = yaffs_SuperToDevice(sb);
400 fb6ffedcfa89 Add one-shot feature for yaffs auto checkpointing. Charles Manning <cdhmanning@gmail.com> parents: 398 diff changeset	1967 unsigned int oneshot_checkpoint = (yaffs_auto_checkpoint & 4);
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1968 unsigned gc_urgent = yaffs_bg_gc_urgency(dev);
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1969 int do_checkpoint;
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1970
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1971 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC \| YAFFS_TRACE_BACKGROUND,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	1972 (TSTR("yaffs_do_sync_fs: gc-urgency %d %s %s%s\n"),
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1973 gc_urgent,
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1974 sb->s_dirt ? "dirty" : "clean",
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1975 request_checkpoint ? "checkpoint requested" : "no checkpoint",
400 fb6ffedcfa89 Add one-shot feature for yaffs auto checkpointing. Charles Manning <cdhmanning@gmail.com> parents: 398 diff changeset	1976 oneshot_checkpoint ? " one-shot" : "" ));
fb6ffedcfa89 Add one-shot feature for yaffs auto checkpointing. Charles Manning <cdhmanning@gmail.com> parents: 398 diff changeset	1977
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1978 yaffs_GrossLock(dev);
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1979 do_checkpoint = ((request_checkpoint && !gc_urgent) \|\|
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1980 oneshot_checkpoint) &&
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1981 !dev->isCheckpointed;
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1982
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1983 if (sb->s_dirt \|\| do_checkpoint) {
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1984 yaffs_FlushSuperBlock(sb, !dev->isCheckpointed && do_checkpoint);
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1985 sb->s_dirt = 0;
400 fb6ffedcfa89 Add one-shot feature for yaffs auto checkpointing. Charles Manning <cdhmanning@gmail.com> parents: 398 diff changeset	1986 if(oneshot_checkpoint)
fb6ffedcfa89 Add one-shot feature for yaffs auto checkpointing. Charles Manning <cdhmanning@gmail.com> parents: 398 diff changeset	1987 yaffs_auto_checkpoint &= ~4;
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1988 }
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	1989 yaffs_GrossUnlock(dev);
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	1990
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1991 return 0;
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	1992 }
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	1993
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1994 /*
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1995 * yaffs background thread functions .
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1996 * yaffs_BackgroundThread() the thread function
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1997 * yaffs_BackgroundStart() launches the background thread.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1998 * yaffs_BackgroundStop() cleans up the background thread.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	1999 *
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2000 * NB:
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2001 * The thread should only run after the yaffs is initialised
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2002 * The thread should be stopped before yaffs is unmounted.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2003 * The thread should not do any writing while the fs is in read only.
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2004 */
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2005
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2006 #ifdef YAFFS_COMPILE_BACKGROUND
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2007
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2008 void yaffs_background_waker(unsigned long data)
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2009 {
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2010 wake_up_process((struct task_struct *)data);
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2011 }
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2012
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2013 static int yaffs_BackgroundThread(void *data)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2014 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2015 yaffs_Device dev = (yaffs_Device )data;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2016 struct yaffs_LinuxContext *context = yaffs_DeviceToContext(dev);
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2017 unsigned long now = jiffies;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2018 unsigned long next_dir_update = now;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2019 unsigned long next_gc = now;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2020 unsigned long expires;
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2021 unsigned int urgency;
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2022
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2023 int gcResult;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2024 struct timer_list timer;
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2025
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2026 T(YAFFS_TRACE_BACKGROUND,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2027 (TSTR("yaffs_background starting for dev %p\n"),
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2028 (void *)dev));
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2029
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2030 set_freezable();
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2031
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2032 while(context->bgRunning){
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2033 T(YAFFS_TRACE_BACKGROUND,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2034 (TSTR("yaffs_background\n")));
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2035
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2036 if(kthread_should_stop())
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2037 break;
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2038
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2039 if(try_to_freeze())
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2040 continue;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2041
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2042 yaffs_GrossLock(dev);
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2043
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2044 now = jiffies;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2045
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2046 if(time_after(now, next_dir_update)){
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2047 yaffs_UpdateDirtyDirectories(dev);
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2048 next_dir_update = now + HZ;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2049 }
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2050
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2051 if(time_after(now,next_gc)){
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2052 if(!dev->isCheckpointed){
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2053 urgency = yaffs_bg_gc_urgency(dev);
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2054 gcResult = yaffs_BackgroundGarbageCollect(dev, urgency);
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2055 if(urgency > 1)
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2056 next_gc = now + HZ/20+1;
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2057 else if(urgency > 0)
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2058 next_gc = now + HZ/10+1;
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2059 else
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2060 next_gc = now + HZ * 2;
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2061 } else /*
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2062 * gc not running so set to next_dir_update
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2063 * to cut down on wake ups
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2064 */
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2065 next_gc = next_dir_update;
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2066 }
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2067 yaffs_GrossUnlock(dev);
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2068 #if 1
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2069 expires = next_dir_update;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2070 if (time_before(next_gc,expires))
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2071 expires = next_gc;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2072 if(time_before(expires,now))
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2073 expires = now + HZ;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2074
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2075 init_timer(&timer);
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2076 timer.expires = expires+1;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2077 timer.data = (unsigned long) current;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2078 timer.function = yaffs_background_waker;
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2079
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2080 set_current_state(TASK_INTERRUPTIBLE);
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2081 add_timer(&timer);
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2082 schedule();
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2083 del_timer_sync(&timer);
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2084 #else
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2085 msleep(10);
675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2086 #endif
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2087 }
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2088
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2089 return 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2090 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2091
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2092 static int yaffs_BackgroundStart(yaffs_Device *dev)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2093 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2094 int retval = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2095 struct yaffs_LinuxContext *context = yaffs_DeviceToContext(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2096
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2097 context->bgRunning = 1;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2098
407 36a72b45da7c yaffs: Clean up 64-bit compilation Charles Manning <cdhmanning@gmail.com> parents: 404 diff changeset	2099 context->bgThread = kthread_run(yaffs_BackgroundThread,
36a72b45da7c yaffs: Clean up 64-bit compilation Charles Manning <cdhmanning@gmail.com> parents: 404 diff changeset	2100 (void *)dev,"yaffs-bg");
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2101
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2102 if(IS_ERR(context->bgThread)){
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2103 retval = PTR_ERR(context->bgThread);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2104 context->bgThread = NULL;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2105 context->bgRunning = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2106 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2107 return retval;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2108 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2109
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2110 static void yaffs_BackgroundStop(yaffs_Device *dev)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2111 {
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2112 struct yaffs_LinuxContext *ctxt = yaffs_DeviceToContext(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2113
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2114 ctxt->bgRunning = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2115
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2116 if( ctxt->bgThread){
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2117 kthread_stop(ctxt->bgThread);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2118 ctxt->bgThread = NULL;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2119 }
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2120 }
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2121 #else
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2122 static int yaffs_BackgroundThread(void *data)
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2123 {
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2124 return 0;
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2125 }
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2126
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2127 static int yaffs_BackgroundStart(yaffs_Device *dev)
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2128 {
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2129 return 0;
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2130 }
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2131
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2132 static void yaffs_BackgroundStop(yaffs_Device *dev)
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2133 {
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2134 }
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2135 #endif
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2136
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2137
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2138 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2139 static void yaffs_write_super(struct super_block *sb)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2140 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2141 static int yaffs_write_super(struct super_block *sb)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2142 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2143 {
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2144 unsigned request_checkpoint = (yaffs_auto_checkpoint >= 2);
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2145
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2146 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC \| YAFFS_TRACE_BACKGROUND,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2147 (TSTR("yaffs_write_super%s\n"),
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2148 request_checkpoint ? " checkpt" : ""));
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2149
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2150 yaffs_do_sync_fs(sb, request_checkpoint);
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2151
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2152 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18))
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2153 return 0;
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2154 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2155 }
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2156
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2157
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2158 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2159 static int yaffs_sync_fs(struct super_block *sb, int wait)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2160 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2161 static int yaffs_sync_fs(struct super_block *sb)
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2162 #endif
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2163 {
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2164 unsigned request_checkpoint = (yaffs_auto_checkpoint >= 1);
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2165
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2166 T(YAFFS_TRACE_OS \| YAFFS_TRACE_SYNC,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2167 (TSTR("yaffs_sync_fs%s\n"),
403 205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2168 request_checkpoint ? " checkpt" : ""));
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2169
205fa93db422 yaffs New background garbage collector and related tweaks Charles Manning <cdhmanning@gmail.com> parents: 402 diff changeset	2170 yaffs_do_sync_fs(sb, request_checkpoint);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2171
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2172 return 0;
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2173 }
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2174
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2175 #ifdef YAFFS_USE_OWN_IGET
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2176
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2177 static struct inode yaffs_iget(struct super_block sb, unsigned long ino)
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2178 {
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2179 struct inode *inode;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2180 yaffs_Object *obj;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2181 yaffs_Device *dev = yaffs_SuperToDevice(sb);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2182
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2183 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2184 (TSTR("yaffs_iget for %lu\n"), ino));
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2185
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2186 inode = iget_locked(sb, ino);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2187 if (!inode)
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2188 return ERR_PTR(-ENOMEM);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2189 if (!(inode->i_state & I_NEW))
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2190 return inode;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2191
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2192 /* NB This is called as a side effect of other functions, but
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2193 * we had to release the lock to prevent deadlocks, so
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2194 * need to lock again.
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2195 */
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2196
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2197 yaffs_GrossLock(dev);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2198
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2199 obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2200
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2201 yaffs_FillInodeFromObject(inode, obj);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2202
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2203 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2204
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2205 unlock_new_inode(inode);
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2206 return inode;
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2207 }
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2208
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2209 #else
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2210
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2211 static void yaffs_read_inode(struct inode *inode)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2212 {
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2213 /* NB This is called as a side effect of other functions, but
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2214 * we had to release the lock to prevent deadlocks, so
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2215 * need to lock again.
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2216 */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2217
0113df80498c lindent marty <marty> parents: 70 diff changeset	2218 yaffs_Object *obj;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2219 yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2220
0113df80498c lindent marty <marty> parents: 70 diff changeset	2221 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2222 (TSTR("yaffs_read_inode for %d\n"), (int)inode->i_ino));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2223
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	2224 if(current != yaffs_DeviceToContext(dev)->readdirProcess)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	2225 yaffs_GrossLock(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2226
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2227 obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2228
0113df80498c lindent marty <marty> parents: 70 diff changeset	2229 yaffs_FillInodeFromObject(inode, obj);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2230
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	2231 if(current != yaffs_DeviceToContext(dev)->readdirProcess)
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	2232 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2233 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2234
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2235 #endif
8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2236
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2237 static YLIST_HEAD(yaffs_context_list);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2238 struct semaphore yaffs_context_lock;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2239
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2240 #if 0 /* not used */
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2241 static int yaffs_remount_fs(struct super_block sb, int flags, char *data)
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2242 {
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2243 yaffs_Device *dev = yaffs_SuperToDevice(sb);
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2244
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2245 if (*flags & MS_RDONLY) {
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2246 struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2247
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2248 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2249 (TSTR("yaffs_remount_fs: %s: RO\n"), dev->name));
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	2250
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2251 yaffs_GrossLock(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2252
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2253 yaffs_FlushSuperBlock(sb,1);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2254
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2255 if (mtd->sync)
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2256 mtd->sync(mtd);
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2257
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2258 yaffs_GrossUnlock(dev);
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2259 } else {
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2260 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2261 (TSTR("yaffs_remount_fs: %s: RW\n"), dev->name));
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2262 }
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2263
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2264 return 0;
6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2265 }
189 b3429807adbf Add support 2.6.23 filesystem interface API. imcd <imcd> parents: 188 diff changeset	2266 #endif
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2267
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2268 static void yaffs_put_super(struct super_block *sb)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2269 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2270 yaffs_Device *dev = yaffs_SuperToDevice(sb);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2271
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2272 T(YAFFS_TRACE_OS, (TSTR("yaffs_put_super\n")));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2273
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2274 T(YAFFS_TRACE_OS \| YAFFS_TRACE_BACKGROUND,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2275 (TSTR("Shutting down yaffs background thread\n")));
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2276 yaffs_BackgroundStop(dev);
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2277 T(YAFFS_TRACE_OS \| YAFFS_TRACE_BACKGROUND,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2278 (TSTR("yaffs background thread shut down\n")));
402 675a2af6ea46 work in progress Charles Manning <cdhmanning@gmail.com> parents: 401 diff changeset	2279
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2280 yaffs_GrossLock(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2281
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2282 yaffs_FlushSuperBlock(sb,1);
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2283
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2284 if (yaffs_DeviceToContext(dev)->putSuperFunc)
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2285 yaffs_DeviceToContext(dev)->putSuperFunc(sb);
175 6c5c85e954a8 Add read-only remount patch charles <charles> parents: 171 diff changeset	2286
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2287
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2288 yaffs_Deinitialise(dev);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2289
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2290 yaffs_GrossUnlock(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2291
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2292 down(&yaffs_context_lock);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2293 ylist_del_init(&(yaffs_DeviceToContext(dev)->contextList));
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2294 up(&yaffs_context_lock);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2295
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2296 if (yaffs_DeviceToContext(dev)->spareBuffer) {
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2297 YFREE(yaffs_DeviceToContext(dev)->spareBuffer);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2298 yaffs_DeviceToContext(dev)->spareBuffer = NULL;
124 95d2677ebc15 Fix unmount spare buffer leak charles <charles> parents: 123 diff changeset	2299 }
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2300
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2301 kfree(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2302 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2303
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2304
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2305 static void yaffs_MTDPutSuper(struct super_block *sb)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2306 {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2307 struct mtd_info *mtd = yaffs_DeviceToContext(yaffs_SuperToDevice(sb))->mtd;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2308
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2309 if (mtd->sync)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2310 mtd->sync(mtd);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2311
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2312 put_mtd_device(mtd);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2313 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2314
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2315
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2316 static void yaffs_MarkSuperBlockDirty(yaffs_Device *dev)
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2317 {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2318 struct super_block *sb = yaffs_DeviceToContext(dev)->superBlock;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2319
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2320 T(YAFFS_TRACE_OS, (TSTR("yaffs_MarkSuperBlockDirty() sb = %p\n"), sb));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2321 if (sb)
249 7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	2322 sb->s_dirt = 1;
129 5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2323 }
5bc7e85eac5b Add non-partitioned checkpointing charles <charles> parents: 127 diff changeset	2324
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2325 typedef struct {
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2326 int inband_tags;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2327 int skip_checkpoint_read;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2328 int skip_checkpoint_write;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2329 int no_cache;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2330 int tags_ecc_on;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2331 int tags_ecc_overridden;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2332 int lazy_loading_enabled;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2333 int lazy_loading_overridden;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2334 int empty_lost_and_found;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2335 int empty_lost_and_found_overridden;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2336 } yaffs_options;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2337
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2338 #define MAX_OPT_LEN 30
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2339 static int yaffs_parse_options(yaffs_options options, const char options_str)
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2340 {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2341 char cur_opt[MAX_OPT_LEN + 1];
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2342 int p;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2343 int error = 0;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2344
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2345 /* Parse through the options which is a comma seperated list */
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2346
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2347 while (options_str && *options_str && !error) {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2348 memset(cur_opt, 0, MAX_OPT_LEN + 1);
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2349 p = 0;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2350
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2351 while(*options_str == ',')
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2352 options_str++;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2353
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2354 while (options_str && options_str != ',') {
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2355 if (p < MAX_OPT_LEN) {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2356 cur_opt[p] = *options_str;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2357 p++;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2358 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2359 options_str++;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2360 }
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2361
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2362 if (!strcmp(cur_opt, "inband-tags"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2363 options->inband_tags = 1;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2364 else if (!strcmp(cur_opt, "tags-ecc-off")){
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2365 options->tags_ecc_on = 0;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2366 options->tags_ecc_overridden=1;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2367 } else if (!strcmp(cur_opt, "tags-ecc-on")){
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2368 options->tags_ecc_on = 1;
4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2369 options->tags_ecc_overridden = 1;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2370 } else if (!strcmp(cur_opt, "lazy-loading-off")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2371 options->lazy_loading_enabled = 0;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2372 options->lazy_loading_overridden=1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2373 } else if (!strcmp(cur_opt, "lazy-loading-on")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2374 options->lazy_loading_enabled = 1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2375 options->lazy_loading_overridden = 1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2376 } else if (!strcmp(cur_opt, "empty-lost-and-found-off")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2377 options->empty_lost_and_found = 0;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2378 options->empty_lost_and_found_overridden=1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2379 } else if (!strcmp(cur_opt, "empty-lost-and-found-on")){
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2380 options->empty_lost_and_found = 1;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2381 options->empty_lost_and_found_overridden=1;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2382 } else if (!strcmp(cur_opt, "no-cache"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2383 options->no_cache = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2384 else if (!strcmp(cur_opt, "no-checkpoint-read"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2385 options->skip_checkpoint_read = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2386 else if (!strcmp(cur_opt, "no-checkpoint-write"))
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2387 options->skip_checkpoint_write = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2388 else if (!strcmp(cur_opt, "no-checkpoint")) {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2389 options->skip_checkpoint_read = 1;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2390 options->skip_checkpoint_write = 1;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2391 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2392 printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2393 cur_opt);
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2394 error = 1;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2395 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2396 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2397
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2398 return error;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2399 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2400
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2401 static struct super_block *yaffs_internal_read_super(int yaffsVersion,
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2402 struct super_block *sb,
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2403 void *data, int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2404 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2405 int nBlocks;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2406 struct inode *inode = NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2407 struct dentry *root;
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2408 yaffs_Device *dev = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2409 char devname_buf[BDEVNAME_SIZE + 1];
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2410 struct mtd_info *mtd;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2411 int err;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2412 char data_str = (char )data;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2413 struct yaffs_LinuxContext *context = NULL;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2414 yaffs_DeviceParam *param;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2415
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2416 yaffs_options options;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2417
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2418 sb->s_magic = YAFFS_MAGIC;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2419 sb->s_op = &yaffs_super_ops;
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2420 sb->s_flags \|= MS_NOATIME;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2421
401 7d524c984100 Tweak nfs support Charles Manning <cdhmanning@gmail.com> parents: 400 diff changeset	2422 #ifdef YAFFS_COMPILE_EXPORTFS
398 a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	2423 sb->s_export_op = &yaffs_export_ops;
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	2424 #endif
a688086ddd0c Add nfs support. Charles Manning <cdhmanning@gmail.com> parents: 388 diff changeset	2425
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2426 if (!sb)
0113df80498c lindent marty <marty> parents: 70 diff changeset	2427 printk(KERN_INFO "yaffs: sb is NULL\n");
0113df80498c lindent marty <marty> parents: 70 diff changeset	2428 else if (!sb->s_dev)
0113df80498c lindent marty <marty> parents: 70 diff changeset	2429 printk(KERN_INFO "yaffs: sb->s_dev is NULL\n");
0113df80498c lindent marty <marty> parents: 70 diff changeset	2430 else if (!yaffs_devname(sb, devname_buf))
0113df80498c lindent marty <marty> parents: 70 diff changeset	2431 printk(KERN_INFO "yaffs: devname is NULL\n");
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2432 else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2433 printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2434 sb->s_dev,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2435 yaffs_devname(sb, devname_buf));
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2436
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2437 if (!data_str)
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2438 data_str = "";
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2439
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2440 printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str);
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2441
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2442 memset(&options, 0, sizeof(options));
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2443
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2444 if (yaffs_parse_options(&options, data_str)) {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2445 /* Option parsing failed */
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2446 return NULL;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2447 }
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2448
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2449
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2450 sb->s_blocksize = PAGE_CACHE_SIZE;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2451 sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2452
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2453 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2454 (TSTR("yaffs_read_super: Using yaffs%d\n"), yaffsVersion));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2455 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2456 (TSTR("yaffs_read_super: block size %d\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2457 (int)(sb->s_blocksize)));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2458
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2459 T(YAFFS_TRACE_ALWAYS,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2460 (TSTR("yaffs: Attempting MTD mount of %u.%u,\"%s\"\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2461 MAJOR(sb->s_dev), MINOR(sb->s_dev),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2462 yaffs_devname(sb, devname_buf)));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2463
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2464 /* Check it's an mtd device..... */
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2465 if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2466 return NULL; /* This isn't an mtd device */
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2467
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2468 /* Get the device */
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2469 mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2470 if (!mtd) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2471 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2472 (TSTR("yaffs: MTD device #%u doesn't appear to exist\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2473 MINOR(sb->s_dev)));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2474 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2475 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2476 /* Check it's NAND */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2477 if (mtd->type != MTD_NANDFLASH) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2478 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2479 (TSTR("yaffs: MTD device is not NAND it's type %d\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2480 mtd->type));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2481 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2482 }
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2483
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2484 T(YAFFS_TRACE_OS, (TSTR(" erase %p\n"), mtd->erase));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2485 T(YAFFS_TRACE_OS, (TSTR(" read %p\n"), mtd->read));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2486 T(YAFFS_TRACE_OS, (TSTR(" write %p\n"), mtd->write));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2487 T(YAFFS_TRACE_OS, (TSTR(" readoob %p\n"), mtd->read_oob));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2488 T(YAFFS_TRACE_OS, (TSTR(" writeoob %p\n"), mtd->write_oob));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2489 T(YAFFS_TRACE_OS, (TSTR(" block_isbad %p\n"), mtd->block_isbad));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2490 T(YAFFS_TRACE_OS, (TSTR(" block_markbad %p\n"), mtd->block_markbad));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2491 T(YAFFS_TRACE_OS, (TSTR(" %s %d\n"), WRITE_SIZE_STR, WRITE_SIZE(mtd)));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2492 T(YAFFS_TRACE_OS, (TSTR(" oobsize %d\n"), mtd->oobsize));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2493 T(YAFFS_TRACE_OS, (TSTR(" erasesize %d\n"), mtd->erasesize));
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2494 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2495 T(YAFFS_TRACE_OS, (TSTR(" size %u\n"), mtd->size));
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2496 #else
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2497 T(YAFFS_TRACE_OS, (TSTR(" size %lld\n"), mtd->size));
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2498 #endif
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2499
109 b9876f8c4b48 Fix conditional charles <charles> parents: 108 diff changeset	2500 #ifdef CONFIG_YAFFS_AUTO_YAFFS2
108 4a8113f1c36b Add yaffs2 autoselection charles <charles> parents: 106 diff changeset	2501
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2502 if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2503 T(YAFFS_TRACE_ALWAYS,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2504 (TSTR("yaffs: auto selecting yaffs2\n")));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2505 yaffsVersion = 2;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2506 }
b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2507
137 57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	2508 /* Added NCB 26/5/2006 for completeness */
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2509 if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) {
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2510 T(YAFFS_TRACE_ALWAYS,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2511 (TSTR("yaffs: auto selecting yaffs1\n")));
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	2512 yaffsVersion = 1;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2513 }
137 57ba5c5a6cc6 Add Nick's yaffs1 autoselection charles <charles> parents: 133 diff changeset	2514
108 4a8113f1c36b Add yaffs2 autoselection charles <charles> parents: 106 diff changeset	2515 #endif
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2516
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2517 if (yaffsVersion == 2) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2518 /* Check for version 2 style functions */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2519 if (!mtd->erase \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2520 !mtd->block_isbad \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2521 !mtd->block_markbad \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2522 !mtd->read \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2523 !mtd->write \|\|
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2524 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2525 !mtd->read_oob \|\| !mtd->write_oob) {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2526 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2527 !mtd->write_ecc \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2528 !mtd->read_ecc \|\| !mtd->read_oob \|\| !mtd->write_oob) {
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2529 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2530 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2531 (TSTR("yaffs: MTD device does not support required "
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2532 "functions\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2533 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2534 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2535
204 0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2536 if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE \|\|
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2537 mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
0f70320a2274 Check in inband tags, some extra yaffs direct functions and some other changes charles <charles> parents: 198 diff changeset	2538 !options.inband_tags) {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2539 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2540 (TSTR("yaffs: MTD device does not have the "
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2541 "right page sizes\n")));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2542 return NULL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2543 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2544 } else {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2545 /* Check for V1 style functions */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2546 if (!mtd->erase \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2547 !mtd->read \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2548 !mtd->write \|\|
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2549 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2550 !mtd->read_oob \|\| !mtd->write_oob) {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2551 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2552 !mtd->write_ecc \|\|
0113df80498c lindent marty <marty> parents: 70 diff changeset	2553 !mtd->read_ecc \|\| !mtd->read_oob \|\| !mtd->write_oob) {
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2554 #endif
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2555 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2556 (TSTR("yaffs: MTD device does not support required "
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2557 "functions\n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2558 return NULL;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2559 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	2560
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2561 if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK \|\|
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2562 mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2563 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2564 (TSTR("yaffs: MTD device does not support have the "
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2565 "right page sizes\n")));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2566 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2567 }
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2568 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2569
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2570 /* OK, so if we got here, we have an MTD that's NAND and looks
0113df80498c lindent marty <marty> parents: 70 diff changeset	2571 * like it has the right capabilities
0113df80498c lindent marty <marty> parents: 70 diff changeset	2572 * Set the yaffs_Device up for mtd
0113df80498c lindent marty <marty> parents: 70 diff changeset	2573 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2574
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2575 dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2576 context = kmalloc(sizeof(struct yaffs_LinuxContext),GFP_KERNEL);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2577
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2578 if(!dev \|\| !context ){
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2579 if(dev)
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2580 kfree(dev);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2581 if(context)
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2582 kfree(context);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2583 dev = NULL;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2584 context = NULL;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2585 }
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2586
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2587 if (!dev) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	2588 /* Deep shit could not allocate device structure */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2589 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2590 (TSTR("yaffs_read_super: Failed trying to allocate "
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2591 "yaffs_Device. \n")));
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2592 return NULL;
d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2593 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2594 memset(dev, 0, sizeof(yaffs_Device));
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2595 param = &(dev->param);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2596
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2597 memset(context,0,sizeof(struct yaffs_LinuxContext));
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2598 dev->context = context;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2599 YINIT_LIST_HEAD(&(context->contextList));
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2600 context->dev = dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2601 context->superBlock = sb;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2602
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2603
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2604
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2605 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2606 sb->s_fs_info = dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2607 #else
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2608 sb->u.generic_sbp = dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2609 #endif
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2610
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2611 yaffs_DeviceToContext(dev)->mtd = mtd;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2612 param->name = mtd->name;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2613
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2614 /* Set up the memory size parameters.... */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2615
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2616 nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
266 1fc8a6a2271f Add Linux 2.6.29 support charles <charles> parents: 264 diff changeset	2617
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2618 param->startBlock = 0;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2619 param->endBlock = nBlocks - 1;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2620 param->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2621 param->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2622 param->nReservedBlocks = 5;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2623 param->nShortOpCaches = (options.no_cache) ? 0 : 10;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2624 param->inbandTags = options.inband_tags;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2625
303 a9dda7e5b822 Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing charles <charles> parents: 300 diff changeset	2626 #ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2627 param->disableLazyLoad = 1;
303 a9dda7e5b822 Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing charles <charles> parents: 300 diff changeset	2628 #endif
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2629 if(options.lazy_loading_overridden)
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2630 param->disableLazyLoad = !options.lazy_loading_enabled;
303 a9dda7e5b822 Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing charles <charles> parents: 300 diff changeset	2631
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2632 #ifdef CONFIG_YAFFS_DISABLE_TAGS_ECC
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2633 param->noTagsECC = 1;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2634 #endif
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2635
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2636 #ifdef CONFIG_YAFFS_DISABLE_BACKGROUND
043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2637 #else
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2638 param->deferDirectoryUpdate = 1;
374 043bd07468b6 Add conditional compilation for background processing charles <charles> parents: 372 diff changeset	2639 #endif
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2640
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2641 if(options.tags_ecc_overridden)
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2642 param->noTagsECC = !options.tags_ecc_on;
300 4d9d442da93f Allow the disabling of tags ECC charles <charles> parents: 291 diff changeset	2643
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2644 #ifdef CONFIG_YAFFS_EMPTY_LOST_AND_FOUND
361 77453ad2ede7 Fix parameter handling charles <charles> parents: 356 diff changeset	2645 param->emptyLostAndFound = 1;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2646 #endif
365 db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2647
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2648 #ifdef CONFIG_YAFFS_DISABLE_BLOCK_REFRESHING
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2649 param->refreshPeriod = 0;
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2650 #else
418 ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	2651 param->refreshPeriod = 500;
365 db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2652 #endif
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2653
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2654 if(options.empty_lost_and_found_overridden)
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2655 param->emptyLostAndFound = options.empty_lost_and_found;
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2656
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2657 /* ... and the functions. */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2658 if (yaffsVersion == 2) {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2659 param->writeChunkWithTagsToNAND =
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2660 nandmtd2_WriteChunkWithTagsToNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2661 param->readChunkWithTagsFromNAND =
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2662 nandmtd2_ReadChunkWithTagsFromNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2663 param->markNANDBlockBad = nandmtd2_MarkNANDBlockBad;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2664 param->queryNANDBlock = nandmtd2_QueryNANDBlock;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2665 yaffs_DeviceToContext(dev)->spareBuffer = YMALLOC(mtd->oobsize);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2666 param->isYaffs2 = 1;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2667 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2668 param->totalBytesPerChunk = mtd->writesize;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2669 param->nChunksPerBlock = mtd->erasesize / mtd->writesize;
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2670 #else
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2671 param->totalBytesPerChunk = mtd->oobblock;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2672 param->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2673 #endif
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2674 nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize);
131 99e93a234aba Fix some checkpoint stuff, add qsort charles <charles> parents: 129 diff changeset	2675
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2676 param->startBlock = 0;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2677 param->endBlock = nBlocks - 1;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2678 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2679 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2680 /* use the MTD interface in yaffs_mtdif1.c */
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2681 param->writeChunkWithTagsToNAND =
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2682 nandmtd1_WriteChunkWithTagsToNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2683 param->readChunkWithTagsFromNAND =
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2684 nandmtd1_ReadChunkWithTagsFromNAND;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2685 param->markNANDBlockBad = nandmtd1_MarkNANDBlockBad;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2686 param->queryNANDBlock = nandmtd1_QueryNANDBlock;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2687 #else
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2688 param->writeChunkToNAND = nandmtd_WriteChunkToNAND;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2689 param->readChunkFromNAND = nandmtd_ReadChunkFromNAND;
179 2c3cea26b1ca Rolling in Ians and other changes charles <charles> parents: 176 diff changeset	2690 #endif
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2691 param->isYaffs2 = 0;
59 d6ff669317b8 Adapt the code structure after removing of the yaffsram support. luc <luc> parents: 58 diff changeset	2692 }
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2693 /* ... and common functions */
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2694 param->eraseBlockInNAND = nandmtd_EraseBlockInNAND;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2695 param->initialiseNAND = nandmtd_InitialiseNAND;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2696
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2697 yaffs_DeviceToContext(dev)->putSuperFunc = yaffs_MTDPutSuper;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2698
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2699 param->markSuperBlockDirty = yaffs_MarkSuperBlockDirty;
388 36569f389824 Add garbage collection control charles <charles> parents: 387 diff changeset	2700 param->gcControl = yaffs_gc_control_callback;
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2701
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2702 yaffs_DeviceToContext(dev)->superBlock= sb;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2703
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2704
61 49f66fca0b09 newconfig: use YAFFS_DOES_ECC instead of USE_NANDECC luc <luc> parents: 59 diff changeset	2705 #ifndef CONFIG_YAFFS_DOES_ECC
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2706 param->useNANDECC = 1;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2707 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2708
104 8d952dff2dff Hook wide tnode support into Linux charles <charles> parents: 99 diff changeset	2709 #ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2710 param->wideTnodesDisabled = 1;
104 8d952dff2dff Hook wide tnode support into Linux charles <charles> parents: 99 diff changeset	2711 #endif
8d952dff2dff Hook wide tnode support into Linux charles <charles> parents: 99 diff changeset	2712
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2713 param->skipCheckpointRead = options.skip_checkpoint_read;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2714 param->skipCheckpointWrite = options.skip_checkpoint_write;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2715
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2716 /* we assume this is protected by lock_kernel() in mount/umount */
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2717 down(&yaffs_context_lock);
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2718 ylist_add_tail(&(yaffs_DeviceToContext(dev)->contextList), &yaffs_context_list);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2719 up(&yaffs_context_lock);
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	2720
321 be04ef15b604 New fix for readdir hang charles <charles> parents: 320 diff changeset	2721 /* Directory search handling...*/
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2722 YINIT_LIST_HEAD(&(yaffs_DeviceToContext(dev)->searchContexts));
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2723 param->removeObjectCallback = yaffs_RemoveObjectCallback;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2724
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2725 init_MUTEX(&(yaffs_DeviceToContext(dev)->grossLock));
320 37b5b3fda7c0 Revert readdir locking fix that doesn't work properly charles <charles> parents: 319 diff changeset	2726
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2727 yaffs_GrossLock(dev);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2728
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2729 err = yaffs_GutsInitialise(dev);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2730
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2731 T(YAFFS_TRACE_OS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2732 (TSTR("yaffs_read_super: guts initialised %s\n"),
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2733 (err == YAFFS_OK) ? "OK" : "FAILED"));
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2734
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2735 if(err == YAFFS_OK)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2736 yaffs_BackgroundStart(dev);
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2737
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2738 if(!context->bgThread)
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2739 param->deferDirectoryUpdate = 0;
952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	2740
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	2741
106 5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2742 /* Release lock before yaffs_get_inode() */
5b8f68c30468 Apply Reed's deadlocking fix (manually applied) charles <charles> parents: 104 diff changeset	2743 yaffs_GrossUnlock(dev);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2744
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2745 /* Create root inode */
0113df80498c lindent marty <marty> parents: 70 diff changeset	2746 if (err == YAFFS_OK)
0113df80498c lindent marty <marty> parents: 70 diff changeset	2747 inode = yaffs_get_inode(sb, S_IFDIR \| 0755, 0,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2748 yaffs_Root(dev));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2749
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2750 if (!inode)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2751 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2752
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2753 inode->i_op = &yaffs_dir_inode_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2754 inode->i_fop = &yaffs_dir_operations;
0113df80498c lindent marty <marty> parents: 70 diff changeset	2755
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2756 T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: got root inode\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2757
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2758 root = d_alloc_root(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2759
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2760 T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: d_alloc_root done\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2761
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2762 if (!root) {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2763 iput(inode);
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2764 return NULL;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2765 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2766 sb->s_root = root;
249 7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	2767 sb->s_dirt = !dev->isCheckpointed;
7f2e4c70cc30 Add autocheckpoint control charles <charles> parents: 218 diff changeset	2768 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2769 (TSTR("yaffs_read_super: isCheckpointed %d\n"),
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2770 dev->isCheckpointed));
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2771
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2772 T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: done\n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2773 return sb;
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2774 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2775
32 e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2776
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2777 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2778 static int yaffs_internal_read_super_mtd(struct super_block sb, void data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2779 int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2780 {
95 43bc1e9bab9d Patch from Sergey Kubushyn [ksi@koi8.net] marty <marty> parents: 94 diff changeset	2781 return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2782 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2783
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2784 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2785 static int yaffs_read_super(struct file_system_type *fs,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2786 int flags, const char *dev_name,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2787 void data, struct vfsmount mnt)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2788 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2789
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2790 return get_sb_bdev(fs, flags, dev_name, data,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2791 yaffs_internal_read_super_mtd, mnt);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2792 }
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2793 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2794 static struct super_block yaffs_read_super(struct file_system_type fs,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2795 int flags, const char *dev_name,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2796 void *data)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2797 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2798
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2799 return get_sb_bdev(fs, flags, dev_name, data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2800 yaffs_internal_read_super_mtd);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2801 }
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2802 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2803
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2804 static struct file_system_type yaffs_fs_type = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2805 .owner = THIS_MODULE,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2806 .name = "yaffs",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2807 .get_sb = yaffs_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2808 .kill_sb = kill_block_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2809 .fs_flags = FS_REQUIRES_DEV,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2810 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2811 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2812 static struct super_block yaffs_read_super(struct super_block sb, void *data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2813 int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2814 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2815 return yaffs_internal_read_super(1, sb, data, silent);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2816 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2817
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2818 static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2819 FS_REQUIRES_DEV);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2820 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2821
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2822
49 05fb5e11130f Remove CONFIG_YAFFS_USE_CHUNK_SIZE marty <marty> parents: 45 diff changeset	2823 #ifdef CONFIG_YAFFS_YAFFS2
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2824
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2825 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2826 static int yaffs2_internal_read_super_mtd(struct super_block sb, void data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2827 int silent)
32 e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2828 {
95 43bc1e9bab9d Patch from Sergey Kubushyn [ksi@koi8.net] marty <marty> parents: 94 diff changeset	2829 return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
32 e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2830 }
e344a10a3a1e Move the internals read_super() functions near the declaration of luc <luc> parents: 29 diff changeset	2831
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	2832 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2833 static int yaffs2_read_super(struct file_system_type *fs,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2834 int flags, const char dev_name, void data,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2835 struct vfsmount *mnt)
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2836 {
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2837 return get_sb_bdev(fs, flags, dev_name, data,
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2838 yaffs2_internal_read_super_mtd, mnt);
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2839 }
bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2840 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2841 static struct super_block yaffs2_read_super(struct file_system_type fs,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2842 int flags, const char *dev_name,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2843 void *data)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2844 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2845
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2846 return get_sb_bdev(fs, flags, dev_name, data,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2847 yaffs2_internal_read_super_mtd);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2848 }
143 bec3d6bed11a Interworking with 2.6.18 kernel enabled vwool <vwool> parents: 139 diff changeset	2849 #endif
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2850
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2851 static struct file_system_type yaffs2_fs_type = {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2852 .owner = THIS_MODULE,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2853 .name = "yaffs2",
0113df80498c lindent marty <marty> parents: 70 diff changeset	2854 .get_sb = yaffs2_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2855 .kill_sb = kill_block_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2856 .fs_flags = FS_REQUIRES_DEV,
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2857 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2858 #else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2859 static struct super_block yaffs2_read_super(struct super_block sb,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2860 void *data, int silent)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2861 {
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2862 return yaffs_internal_read_super(2, sb, data, silent);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2863 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2864
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2865 static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2866 FS_REQUIRES_DEV);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2867 #endif
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2868
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2869 #endif /* CONFIG_YAFFS_YAFFS2 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2870
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2871 static struct proc_dir_entry *my_proc_entry;
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2872 static struct proc_dir_entry *debug_proc_entry;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2873
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2874 static char yaffs_dump_dev_part0(char buf, yaffs_Device * dev)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2875 {
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2876 buf += sprintf(buf, "startBlock......... %d\n", dev->param.startBlock);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2877 buf += sprintf(buf, "endBlock........... %d\n", dev->param.endBlock);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2878 buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->param.totalBytesPerChunk);
365 db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2879 buf += sprintf(buf, "useNANDECC......... %d\n", dev->param.useNANDECC);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2880 buf += sprintf(buf, "noTagsECC.......... %d\n", dev->param.noTagsECC);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2881 buf += sprintf(buf, "isYaffs2........... %d\n", dev->param.isYaffs2);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2882 buf += sprintf(buf, "inbandTags......... %d\n", dev->param.inbandTags);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2883 buf += sprintf(buf, "emptyLostAndFound.. %d\n", dev->param.emptyLostAndFound);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2884 buf += sprintf(buf, "disableLazyLoad.... %d\n", dev->param.disableLazyLoad);
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2885 buf += sprintf(buf, "refreshPeriod...... %d\n", dev->param.refreshPeriod);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2886 buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->param.nShortOpCaches);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2887 buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->param.nReservedBlocks);
365 db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2888
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2889 buf += sprintf(buf, "\n");
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2890
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2891 return buf;
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2892 }
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2893
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2894
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2895 static char yaffs_dump_dev_part1(char buf, yaffs_Device * dev)
db12031081bc Add block refreshing feature charles <charles> parents: 361 diff changeset	2896 {
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2897 buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2898 buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2899 buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2900 buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks);
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	2901 buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2902 buf += sprintf(buf, "\n");
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2903 buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2904 buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2905 buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2906 buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects);
0113df80498c lindent marty <marty> parents: 70 diff changeset	2907 buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2908 buf += sprintf(buf, "\n");
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2909 buf += sprintf(buf, "nPageWrites........ %u\n", dev->nPageWrites);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2910 buf += sprintf(buf, "nPageReads......... %u\n", dev->nPageReads);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2911 buf += sprintf(buf, "nBlockErasures..... %u\n", dev->nBlockErasures);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2912 buf += sprintf(buf, "nGCCopies.......... %u\n", dev->nGCCopies);
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2913 buf += sprintf(buf, "allGCs............. %u\n", dev->allGCs);
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2914 buf += sprintf(buf, "passiveGCs......... %u\n", dev->passiveGCs);
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2915 buf += sprintf(buf, "oldestDirtyGCs..... %u\n", dev->oldestDirtyGCs);
792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	2916 buf += sprintf(buf, "backgroundGCs...... %u\n", dev->backgroundGCs);
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2917 buf += sprintf(buf, "nRetriedWrites..... %u\n", dev->nRetriedWrites);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2918 buf += sprintf(buf, "nRetireBlocks...... %u\n", dev->nRetiredBlocks);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2919 buf += sprintf(buf, "eccFixed........... %u\n", dev->eccFixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2920 buf += sprintf(buf, "eccUnfixed......... %u\n", dev->eccUnfixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2921 buf += sprintf(buf, "tagsEccFixed....... %u\n", dev->tagsEccFixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2922 buf += sprintf(buf, "tagsEccUnfixed..... %u\n", dev->tagsEccUnfixed);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2923 buf += sprintf(buf, "cacheHits.......... %u\n", dev->cacheHits);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2924 buf += sprintf(buf, "nDeletedFiles...... %u\n", dev->nDeletedFiles);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2925 buf += sprintf(buf, "nUnlinkedFiles..... %u\n", dev->nUnlinkedFiles);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2926 buf += sprintf(buf, "refreshCount....... %u\n", dev->refreshCount);
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2927 buf +=
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2928 sprintf(buf, "nBackgroudDeletions %u\n", dev->nBackgroundDeletions);
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2929
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2930 return buf;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2931 }
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2932
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2933 static int yaffs_proc_read(char *page,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2934 char **start,
0113df80498c lindent marty <marty> parents: 70 diff changeset	2935 off_t offset, int count, int eof, void data)
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2936 {
210 8a4f31e59ad8 Some cleanups, Linux 2.6.25 handling, fix handing of root permissions charles <charles> parents: 204 diff changeset	2937 struct ylist_head *item;
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2938 char *buf = page;
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2939 int step = offset;
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2940 int n = 0;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2941
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2942 /* Get proc_file_read() to step 'offset' by one on each sucessive call.
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2943 * We use 'offset' (*ppos) to indicate where we are in devList.
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2944 * This also assumes the user has posted a read buffer large
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2945 * enough to hold the complete output; but that's life in /proc.
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2946 */
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2947
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2948 (int )start = 1;
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2949
d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2950 /* Print header first */
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2951 if (step == 0)
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2952 buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__"\n");
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2953 else if (step == 1)
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2954 buf += sprintf(buf,"\n");
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2955 else {
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2956 step-=2;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2957
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2958 down(&yaffs_context_lock);
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2959
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2960 /* Locate and print the Nth entry. Order N-squared but N is small. */
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2961 ylist_for_each(item, &yaffs_context_list) {
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2962 struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList);
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2963 yaffs_Device *dev = dc->dev;
7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2964
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2965 if (n < (step & ~1)) {
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2966 n+=2;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2967 continue;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2968 }
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2969 if((step & 1)==0){
356 7ee0cc4ba753 Rationalise context and parameter handling charles <charles> parents: 350 diff changeset	2970 buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->param.name);
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2971 buf = yaffs_dump_dev_part0(buf, dev);
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2972 } else
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2973 buf = yaffs_dump_dev_part1(buf, dev);
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2974
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2975 break;
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	2976 }
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	2977 up(&yaffs_context_lock);
27 d77d5c2ba9cc Allow /proc/yaffs to handle multiple fs charles <charles> parents: 26 diff changeset	2978 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2979
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	2980 return buf - page < count ? buf - page : count;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2981 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	2982
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	2983 static int yaffs_stats_proc_read(char *page,
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2984 char **start,
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2985 off_t offset, int count, int eof, void data)
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2986 {
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2987 struct ylist_head *item;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2988 char *buf = page;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2989 int n = 0;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2990
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2991 down(&yaffs_context_lock);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2992
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2993 /* Locate and print the Nth entry. Order N-squared but N is small. */
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2994 ylist_for_each(item, &yaffs_context_list) {
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2995 struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	2996 yaffs_Device *dev = dc->dev;
387 8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	2997
8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	2998 int erasedChunks;
8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	2999 int nObjects;
8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3000 int nTnodes;
8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3001
8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3002 erasedChunks = dev->nErasedBlocks * dev->param.nChunksPerBlock;
8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3003 nObjects = dev->nObjectsCreated -dev->nFreeObjects;
8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3004 nTnodes = dev->nTnodesCreated - dev->nFreeTnodes;
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3005
387 8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3006
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	3007 buf += sprintf(buf,"%d, %d, %d, %u, %u, %d, %d\n",
387 8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3008 n, dev->nFreeChunks, erasedChunks,
404 792f3d959342 yaffs: More background gc tweaks. Charles Manning <cdhmanning@gmail.com> parents: 403 diff changeset	3009 dev->backgroundGCs, dev->oldestDirtyGCs,
387 8e0094175e71 Add more detail to yaffs_debug charles <charles> parents: 385 diff changeset	3010 nObjects, nTnodes);
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3011 }
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3012 up(&yaffs_context_lock);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3013
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3014
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3015 return buf - page < count ? buf - page : count;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3016 }
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3017
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3018 /**
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3019 * Set the verbosity of the warnings and error messages.
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3020 *
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3021 * Note that the names can only be a..z or _ with the current code.
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3022 */
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3023
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3024 static struct {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3025 char *mask_name;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3026 unsigned mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3027 } mask_flags[] = {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3028 {"allocate", YAFFS_TRACE_ALLOCATE},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3029 {"always", YAFFS_TRACE_ALWAYS},
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3030 {"background", YAFFS_TRACE_BACKGROUND},
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3031 {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3032 {"buffers", YAFFS_TRACE_BUFFERS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3033 {"bug", YAFFS_TRACE_BUG},
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3034 {"checkpt", YAFFS_TRACE_CHECKPOINT},
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3035 {"deletion", YAFFS_TRACE_DELETION},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3036 {"erase", YAFFS_TRACE_ERASE},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3037 {"error", YAFFS_TRACE_ERROR},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3038 {"gc_detail", YAFFS_TRACE_GC_DETAIL},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3039 {"gc", YAFFS_TRACE_GC},
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3040 {"lock", YAFFS_TRACE_LOCK},
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3041 {"mtd", YAFFS_TRACE_MTD},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3042 {"nandaccess", YAFFS_TRACE_NANDACCESS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3043 {"os", YAFFS_TRACE_OS},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3044 {"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3045 {"scan", YAFFS_TRACE_SCAN},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3046 {"tracing", YAFFS_TRACE_TRACING},
342 ce702882929d Move tracing out of yportenv.h charles <charles> parents: 332 diff changeset	3047 {"sync", YAFFS_TRACE_SYNC},
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3048 {"write", YAFFS_TRACE_WRITE},
372 952d0cdd1cbc Add background processing of updated directories charles <charles> parents: 365 diff changeset	3049
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3050 {"verify", YAFFS_TRACE_VERIFY},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3051 {"verify_nand", YAFFS_TRACE_VERIFY_NAND},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3052 {"verify_full", YAFFS_TRACE_VERIFY_FULL},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3053 {"verify_all", YAFFS_TRACE_VERIFY_ALL},
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3054
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3055 {"all", 0xffffffff},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3056 {"none", 0},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3057 {NULL, 0},
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3058 };
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3059
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3060 #define MAX_MASK_NAME_LENGTH 40
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3061 static int yaffs_proc_write_trace_options(struct file file, const char buf,
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3062 unsigned long count, void *data)
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3063 {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3064 unsigned rg = 0, mask_bitfield;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3065 char *end;
570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3066 char *mask_name;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	3067 const char *x;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3068 char substring[MAX_MASK_NAME_LENGTH + 1];
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3069 int i;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3070 int done = 0;
166 8375558dcd05 Update for Linux 2.6.19 support charles <charles> parents: 165 diff changeset	3071 int add, len = 0;
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3072 int pos = 0;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3073
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3074 rg = yaffs_traceMask;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3075
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3076 while (!done && (pos < count)) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3077 done = 1;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	3078 while ((pos < count) && isspace(buf[pos]))
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3079 pos++;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3080
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3081 switch (buf[pos]) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3082 case '+':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3083 case '-':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3084 case '=':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3085 add = buf[pos];
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3086 pos++;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3087 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3088
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3089 default:
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3090 add = ' ';
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3091 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3092 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3093 mask_name = NULL;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	3094
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3095 mask_bitfield = simple_strtoul(buf + pos, &end, 0);
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	3096
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3097 if (end > buf + pos) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3098 mask_name = "numeral";
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3099 len = end - (buf + pos);
188 62921764ba1b Fix infinite loop when parsing numeric trace flags written to /proc/yaffs. imcd <imcd> parents: 179 diff changeset	3100 pos += len;
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3101 done = 0;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3102 } else {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3103 for (x = buf + pos, i = 0;
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3104 (x == '_' \|\| (x >= 'a' && *x <= 'z')) &&
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3105 i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3106 substring[i] = *x;
176 570d9d4cac30 Adding checkpoint and robustness improvements charles <charles> parents: 175 diff changeset	3107 substring[i] = '\0';
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	3108
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3109 for (i = 0; mask_flags[i].mask_name != NULL; i++) {
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3110 if (strcmp(substring, mask_flags[i].mask_name) == 0) {
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3111 mask_name = mask_flags[i].mask_name;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3112 mask_bitfield = mask_flags[i].mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3113 done = 0;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3114 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3115 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3116 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3117 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3118
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3119 if (mask_name != NULL) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3120 done = 0;
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3121 switch (add) {
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3122 case '-':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3123 rg &= ~mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3124 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3125 case '+':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3126 rg \|= mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3127 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3128 case '=':
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3129 rg = mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3130 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3131 default:
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3132 rg \|= mask_bitfield;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3133 break;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3134 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3135 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3136 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3137
165 c2f9b707a39e Add Phils checkpoint configuration charles <charles> parents: 148 diff changeset	3138 yaffs_traceMask = rg \| YAFFS_TRACE_ALWAYS;
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	3139
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3140 printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask);
198 b7f785925166 Cleanup patch - Remove all trailing whitespace and fix a few typos. wookey <wookey> parents: 196 diff changeset	3141
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3142 if (rg & YAFFS_TRACE_ALWAYS) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3143 for (i = 0; mask_flags[i].mask_name != NULL; i++) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3144 char flag;
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3145 flag = ((rg & mask_flags[i].mask_bitfield) ==
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3146 mask_flags[i].mask_bitfield) ? '+' : '-';
271 c0dfae9e8073 Major whitespace/style changes to match Linux checkpatch.pl code style wookey <wookey> parents: 268 diff changeset	3147 printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3148 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3149 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3150
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3151 return count;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3152 }
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3153
311 97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3154
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3155 static int yaffs_proc_write(struct file file, const char buf,
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3156 unsigned long count, void *data)
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3157 {
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3158 return yaffs_proc_write_trace_options(file, buf, count, data);
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3159 }
97a4bd3d225e Add fix for hanging objects charles <charles> parents: 303 diff changeset	3160
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3161 /* Stuff to handle installation of file systems */
0113df80498c lindent marty <marty> parents: 70 diff changeset	3162 struct file_system_to_install {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3163 struct file_system_type *fst;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3164 int installed;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3165 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3166
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3167 static struct file_system_to_install fs_to_install[] = {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3168 {&yaffs_fs_type, 0},
0113df80498c lindent marty <marty> parents: 70 diff changeset	3169 {&yaffs2_fs_type, 0},
0113df80498c lindent marty <marty> parents: 70 diff changeset	3170 {NULL, 0}
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3171 };
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3172
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3173 static int __init init_yaffs_fs(void)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3174 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3175 int error = 0;
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3176 struct file_system_to_install *fsinst;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3177
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3178 T(YAFFS_TRACE_ALWAYS,
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3179 (TSTR("yaffs built " __DATE__ " " __TIME__ " Installing. \n")));
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3180
418 ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3181 #ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED
ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3182 T(YAFFS_TRACE_ALWAYS,
ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3183 (TSTR(" \n\n\n\nYAFFS-WARNING CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED selected.\n\n\n\n")));
ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3184 #endif
ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3185
ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3186
ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3187
ff48885b11fb yaffs: Improve debug chunk erased checking, change refreshPeriod Charles Manning <cdhmanning@gmail.com> parents: 409 diff changeset	3188
384 c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	3189 init_MUTEX(&yaffs_context_lock);
c9e1700f2e05 Get rid of kernel lock, change stats to __u32 charles <charles> parents: 374 diff changeset	3190
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3191 /* Install the proc_fs entries */
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3192 my_proc_entry = create_proc_entry("yaffs",
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3193 S_IRUGO \| S_IFREG,
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	3194 YPROC_ROOT);
115 06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3195
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3196 if (my_proc_entry) {
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3197 my_proc_entry->write_proc = yaffs_proc_write;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3198 my_proc_entry->read_proc = yaffs_proc_read;
06a072660af9 Add /proc interface for modifying debugging trace flags, from John M Cavallo. tpoynor <tpoynor> parents: 113 diff changeset	3199 my_proc_entry->data = NULL;
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	3200 } else
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3201 return -ENOMEM;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3202
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3203 debug_proc_entry = create_proc_entry("yaffs_stats",
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3204 S_IRUGO \| S_IFREG,
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3205 YPROC_ROOT);
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3206
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3207 if (debug_proc_entry) {
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3208 debug_proc_entry->write_proc = NULL;
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3209 debug_proc_entry->read_proc = yaffs_stats_proc_read;
385 d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3210 debug_proc_entry->data = NULL;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3211 } else
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3212 return -ENOMEM;
d76a2de52a82 Add debug proc entry for gathering gc stats charles <charles> parents: 384 diff changeset	3213
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3214 /* Now add the file system entries */
0113df80498c lindent marty <marty> parents: 70 diff changeset	3215
0113df80498c lindent marty <marty> parents: 70 diff changeset	3216 fsinst = fs_to_install;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3217
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3218 while (fsinst->fst && !error) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3219 error = register_filesystem(fsinst->fst);
273 5cf3a2a54469 More formatting charles <charles> parents: 271 diff changeset	3220 if (!error)
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3221 fsinst->installed = 1;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3222 fsinst++;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3223 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	3224
0113df80498c lindent marty <marty> parents: 70 diff changeset	3225 /* Any errors? uninstall */
0113df80498c lindent marty <marty> parents: 70 diff changeset	3226 if (error) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3227 fsinst = fs_to_install;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3228
0113df80498c lindent marty <marty> parents: 70 diff changeset	3229 while (fsinst->fst) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3230 if (fsinst->installed) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3231 unregister_filesystem(fsinst->fst);
0113df80498c lindent marty <marty> parents: 70 diff changeset	3232 fsinst->installed = 0;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3233 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	3234 fsinst++;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3235 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	3236 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	3237
0113df80498c lindent marty <marty> parents: 70 diff changeset	3238 return error;
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3239 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3240
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3241 static void __exit exit_yaffs_fs(void)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3242 {
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3243
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3244 struct file_system_to_install *fsinst;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3245
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3246 T(YAFFS_TRACE_ALWAYS,
b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3247 (TSTR("yaffs built " __DATE__ " " __TIME__ " removing. \n")));
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3248
212 0107f21a03fb Fix compilation on Linux 2.6.26, fix compilation warnings charles <charles> parents: 210 diff changeset	3249 remove_proc_entry("yaffs", YPROC_ROOT);
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3250 remove_proc_entry("yaffs_stats", YPROC_ROOT);
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3251
76 0113df80498c lindent marty <marty> parents: 70 diff changeset	3252 fsinst = fs_to_install;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3253
0113df80498c lindent marty <marty> parents: 70 diff changeset	3254 while (fsinst->fst) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3255 if (fsinst->installed) {
0113df80498c lindent marty <marty> parents: 70 diff changeset	3256 unregister_filesystem(fsinst->fst);
0113df80498c lindent marty <marty> parents: 70 diff changeset	3257 fsinst->installed = 0;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3258 }
0113df80498c lindent marty <marty> parents: 70 diff changeset	3259 fsinst++;
0113df80498c lindent marty <marty> parents: 70 diff changeset	3260 }
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3261 }
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3262
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3263 module_init(init_yaffs_fs)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3264 module_exit(exit_yaffs_fs)
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3265
9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3266 MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
409 b5309c9b6d7f yaffs Some cleanups. Charles Manning <cdhmanning@gmail.com> parents: 407 diff changeset	3267 MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2010");
7 9fd733a84a74 * empty log message * charles <charles> parents: diff changeset	3268 MODULE_LICENSE("GPL");

Mercurial > yaffs-ecoscentric-gpl

annotate packages/fs/yaffs/current/src/yaffs_fs.c @ 425:dea4d7d250ad ecos