ecos: packages/fs/jffs2/current/src/build.c annotate

annotate packages/fs/jffs2/current/src/build.c @ 3292:7f8e529b4d82 default tip

Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.

author	vae
date	Wed, 29 Apr 2015 23:31:48 +0000
parents	5bcbb50b501e
children

rev	line source
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	1 /*
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	2 * JFFS2 -- Journalling Flash File System, Version 2.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	3 *
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	4 * Copyright (C) 2001-2003 Red Hat, Inc.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	5 *
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	6 * Created by David Woodhouse <dwmw2@infradead.org>
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	7 *
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	8 * For licensing information, see the file 'LICENCE' in this directory.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	9 *
2042 5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	10 * $Id: build.c,v 1.75 2005/07/22 10:32:07 dedekind Exp $
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	11 *
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	12 */
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	13
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	14 #include <linux/kernel.h>
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	15 #include <linux/sched.h>
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	16 #include <linux/slab.h>
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	17 #include <linux/vmalloc.h>
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	18 #include <linux/mtd/mtd.h>
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	19 #include "nodelist.h"
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	20
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	21 static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info , struct jffs2_inode_cache , struct jffs2_full_dirent **);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	22
1118 18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	23 static inline struct jffs2_inode_cache *
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	24 first_inode_chain(int i, struct jffs2_sb_info c)
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	25 {
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	26 for (; i < INOCACHE_HASHSIZE; (i)++) {
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	27 if (c->inocache_list[*i])
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	28 return c->inocache_list[*i];
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	29 }
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	30 return NULL;
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	31 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	32
1118 18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	33 static inline struct jffs2_inode_cache *
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	34 next_inode(int i, struct jffs2_inode_cache ic, struct jffs2_sb_info *c)
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	35 {
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	36 /* More in this chain? */
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	37 if (ic->next)
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	38 return ic->next;
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	39 (*i)++;
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	40 return first_inode_chain(i, c);
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	41 }
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	42
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	43 #define for_each_inode(i, c, ic) \
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	44 for (i = 0, ic = first_inode_chain(&i, (c)); \
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	45 ic; \
18f99a0f0059 Merge with latest CVS from infradead.org gthomas parents: 570 diff changeset	46 ic = next_inode(&i, ic, (c)))
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	47
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	48
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	49 static inline void jffs2_build_inode_pass1(struct jffs2_sb_info c, struct jffs2_inode_cache ic)
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	50 {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	51 struct jffs2_full_dirent *fd;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	52
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	53 D1(printk(KERN_DEBUG "jffs2_build_inode building directory inode #%u\n", ic->ino));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	54
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	55 /* For each child, increase nlink */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	56 for(fd = ic->scan_dents; fd; fd = fd->next) {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	57 struct jffs2_inode_cache *child_ic;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	58 if (!fd->ino)
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	59 continue;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	60
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	61 /* XXX: Can get high latency here with huge directories */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	62
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	63 child_ic = jffs2_get_ino_cache(c, fd->ino);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	64 if (!child_ic) {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	65 printk(KERN_NOTICE "Eep. Child \"%s\" (ino #%u) of dir ino #%u doesn't exist!\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	66 fd->name, fd->ino, ic->ino);
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	67 jffs2_mark_node_obsolete(c, fd->raw);
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	68 continue;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	69 }
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	70
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	71 if (child_ic->nlink++ && fd->type == DT_DIR) {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	72 printk(KERN_NOTICE "Child dir \"%s\" (ino #%u) of dir ino #%u appears to be a hard link\n", fd->name, fd->ino, ic->ino);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	73 if (fd->ino == 1 && ic->ino == 1) {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	74 printk(KERN_NOTICE "This is mostly harmless, and probably caused by creating a JFFS2 image\n");
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	75 printk(KERN_NOTICE "using a buggy version of mkfs.jffs2. Use at least v1.17.\n");
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	76 }
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	77 /* What do we do about it? */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	78 }
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	79 D1(printk(KERN_DEBUG "Increased nlink for child \"%s\" (ino #%u)\n", fd->name, fd->ino));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	80 /* Can't free them. We might need them in pass 2 */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	81 }
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	82 }
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	83
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	84 /* Scan plan:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	85 - Scan physical nodes. Build map of inodes/dirents. Allocate inocaches as we go
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	86 - Scan directory tree from top down, setting nlink in inocaches
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	87 - Scan inocaches for inodes with nlink==0
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	88 */
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	89 static int jffs2_build_filesystem(struct jffs2_sb_info *c)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	90 {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	91 int ret;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	92 int i;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	93 struct jffs2_inode_cache *ic;
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	94 struct jffs2_full_dirent *fd;
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	95 struct jffs2_full_dirent *dead_fds = NULL;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	96
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	97 /* First, scan the medium and build all the inode caches with
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	98 lists of physical nodes */
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	99
2042 5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	100 c->flags \|= JFFS2_SB_FLAG_SCANNING;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	101 ret = jffs2_scan_medium(c);
2042 5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	102 c->flags &= ~JFFS2_SB_FLAG_SCANNING;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	103 if (ret)
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	104 goto exit;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	105
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	106 D1(printk(KERN_DEBUG "Scanned flash completely\n"));
2042 5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	107 jffs2_dbg_dump_block_lists_nolock(c);
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	108
2042 5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	109 c->flags \|= JFFS2_SB_FLAG_BUILDING;
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	110 /* Now scan the directory tree, increasing nlink according to every dirent found. */
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	111 for_each_inode(i, c, ic) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	112 D1(printk(KERN_DEBUG "Pass 1: ino #%u\n", ic->ino));
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	113
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	114 D1(BUG_ON(ic->ino > c->highest_ino));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	115
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	116 if (ic->scan_dents) {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	117 jffs2_build_inode_pass1(c, ic);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	118 cond_resched();
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	119 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	120 }
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	121
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	122 D1(printk(KERN_DEBUG "Pass 1 complete\n"));
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	123
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	124 /* Next, scan for inodes with nlink == 0 and remove them. If
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	125 they were directories, then decrement the nlink of their
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	126 children too, and repeat the scan. As that's going to be
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	127 a fairly uncommon occurrence, it's not so evil to do it this
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	128 way. Recursion bad. */
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	129 D1(printk(KERN_DEBUG "Pass 2 starting\n"));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	130
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	131 for_each_inode(i, c, ic) {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	132 D1(printk(KERN_DEBUG "Pass 2: ino #%u, nlink %d, ic %p, nodes %p\n", ic->ino, ic->nlink, ic, ic->nodes));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	133 if (ic->nlink)
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	134 continue;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	135
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	136 jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	137 cond_resched();
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	138 }
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	139
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	140 D1(printk(KERN_DEBUG "Pass 2a starting\n"));
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	141
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	142 while (dead_fds) {
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	143 fd = dead_fds;
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	144 dead_fds = fd->next;
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	145
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	146 ic = jffs2_get_ino_cache(c, fd->ino);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	147 D1(printk(KERN_DEBUG "Removing dead_fd ino #%u (\"%s\"), ic at %p\n", fd->ino, fd->name, ic));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	148
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	149 if (ic)
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	150 jffs2_build_remove_unlinked_inode(c, ic, &dead_fds);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	151 jffs2_free_full_dirent(fd);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	152 }
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	153
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	154 D1(printk(KERN_DEBUG "Pass 2 complete\n"));
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	155
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	156 /* Finally, we can scan again and free the dirent structs */
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	157 for_each_inode(i, c, ic) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	158 D1(printk(KERN_DEBUG "Pass 3: ino #%u, ic %p, nodes %p\n", ic->ino, ic, ic->nodes));
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	159
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	160 while(ic->scan_dents) {
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	161 fd = ic->scan_dents;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	162 ic->scan_dents = fd->next;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	163 jffs2_free_full_dirent(fd);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	164 }
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	165 ic->scan_dents = NULL;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	166 cond_resched();
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	167 }
2042 5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	168 c->flags &= ~JFFS2_SB_FLAG_BUILDING;
5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	169
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	170 D1(printk(KERN_DEBUG "Pass 3 complete\n"));
2042 5bcbb50b501e * Merge to public MTD asl parents: 1881 diff changeset	171 jffs2_dbg_dump_block_lists_nolock(c);
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	172
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	173 /* Rotate the lists by some number to ensure wear levelling */
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	174 jffs2_rotate_lists(c);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	175
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	176 ret = 0;
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	177
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	178 exit:
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	179 if (ret) {
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	180 for_each_inode(i, c, ic) {
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	181 while(ic->scan_dents) {
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	182 fd = ic->scan_dents;
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	183 ic->scan_dents = fd->next;
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	184 jffs2_free_full_dirent(fd);
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	185 }
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	186 }
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	187 }
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	188
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	189 return ret;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	190 }
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	191
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	192 static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info c, struct jffs2_inode_cache ic, struct jffs2_full_dirent **dead_fds)
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	193 {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	194 struct jffs2_raw_node_ref *raw;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	195 struct jffs2_full_dirent *fd;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	196
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	197 D1(printk(KERN_DEBUG "JFFS2: Removing ino #%u with nlink == zero.\n", ic->ino));
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	198
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	199 raw = ic->nodes;
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	200 while (raw != (void *)ic) {
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	201 struct jffs2_raw_node_ref *next = raw->next_in_ino;
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	202 D1(printk(KERN_DEBUG "obsoleting node at 0x%08x\n", ref_offset(raw)));
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	203 jffs2_mark_node_obsolete(c, raw);
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	204 raw = next;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	205 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	206
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	207 if (ic->scan_dents) {
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	208 int whinged = 0;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	209 D1(printk(KERN_DEBUG "Inode #%u was a directory which may have children...\n", ic->ino));
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	210
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	211 while(ic->scan_dents) {
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	212 struct jffs2_inode_cache *child_ic;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	213
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	214 fd = ic->scan_dents;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	215 ic->scan_dents = fd->next;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	216
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	217 if (!fd->ino) {
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	218 /* It's a deletion dirent. Ignore it */
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	219 D1(printk(KERN_DEBUG "Child \"%s\" is a deletion dirent, skipping...\n", fd->name));
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	220 jffs2_free_full_dirent(fd);
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	221 continue;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	222 }
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	223 if (!whinged) {
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	224 whinged = 1;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	225 printk(KERN_NOTICE "Inode #%u was a directory with children - removing those too...\n", ic->ino);
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	226 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	227
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	228 D1(printk(KERN_DEBUG "Removing child \"%s\", ino #%u\n",
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	229 fd->name, fd->ino));
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	230
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	231 child_ic = jffs2_get_ino_cache(c, fd->ino);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	232 if (!child_ic) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	233 printk(KERN_NOTICE "Cannot remove child \"%s\", ino #%u, because it doesn't exist\n", fd->name, fd->ino);
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	234 jffs2_free_full_dirent(fd);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	235 continue;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	236 }
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	237
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	238 /* Reduce nlink of the child. If it's now zero, stick it on the
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	239 dead_fds list to be cleaned up later. Else just free the fd */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	240
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	241 child_ic->nlink--;
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	242
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	243 if (!child_ic->nlink) {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	244 D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got zero nlink. Adding to dead_fds list.\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	245 fd->ino, fd->name));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	246 fd->next = *dead_fds;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	247 *dead_fds = fd;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	248 } else {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	249 D1(printk(KERN_DEBUG "Inode #%u (\"%s\") has now got nlink %d. Ignoring.\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	250 fd->ino, fd->name, child_ic->nlink));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	251 jffs2_free_full_dirent(fd);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	252 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	253 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	254 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	255
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	256 /*
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	257 We don't delete the inocache from the hash list and free it yet.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	258 The erase code will do that, when all the nodes are completely gone.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	259 */
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	260 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	261
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	262 static void jffs2_calc_trigger_levels(struct jffs2_sb_info *c)
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	263 {
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	264 uint32_t size;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	265
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	266 /* Deletion should almost _always_ be allowed. We're fairly
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	267 buggered once we stop allowing people to delete stuff
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	268 because there's not enough free space... */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	269 c->resv_blocks_deletion = 2;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	270
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	271 /* Be conservative about how much space we need before we allow writes.
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	272 On top of that which is required for deletia, require an extra 2%
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	273 of the medium to be available, for overhead caused by nodes being
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	274 split across blocks, etc. */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	275
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	276 size = c->flash_size / 50; /* 2% of flash size */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	277 size += c->nr_blocks * 100; /* And 100 bytes per eraseblock */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	278 size += c->sector_size - 1; /* ... and round up */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	279
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	280 c->resv_blocks_write = c->resv_blocks_deletion + (size / c->sector_size);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	281
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	282 /* When do we let the GC thread run in the background */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	283
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	284 c->resv_blocks_gctrigger = c->resv_blocks_write + 1;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	285
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	286 /* When do we allow garbage collection to merge nodes to make
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	287 long-term progress at the expense of short-term space exhaustion? */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	288 c->resv_blocks_gcmerge = c->resv_blocks_deletion + 1;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	289
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	290 /* When do we allow garbage collection to eat from bad blocks rather
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	291 than actually making progress? */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	292 c->resv_blocks_gcbad = 0;//c->resv_blocks_deletion + 2;
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	293
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	294 /* If there's less than this amount of dirty space, don't bother
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	295 trying to GC to make more space. It'll be a fruitless task */
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	296 c->nospc_dirty_size = c->sector_size + (c->flash_size / 100);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	297
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	298 D1(printk(KERN_DEBUG "JFFS2 trigger levels (size %d KiB, block size %d KiB, %d blocks)\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	299 c->flash_size / 1024, c->sector_size / 1024, c->nr_blocks));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	300 D1(printk(KERN_DEBUG "Blocks required to allow deletion: %d (%d KiB)\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	301 c->resv_blocks_deletion, c->resv_blocks_deletion*c->sector_size/1024));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	302 D1(printk(KERN_DEBUG "Blocks required to allow writes: %d (%d KiB)\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	303 c->resv_blocks_write, c->resv_blocks_write*c->sector_size/1024));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	304 D1(printk(KERN_DEBUG "Blocks required to quiesce GC thread: %d (%d KiB)\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	305 c->resv_blocks_gctrigger, c->resv_blocks_gctrigger*c->sector_size/1024));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	306 D1(printk(KERN_DEBUG "Blocks required to allow GC merges: %d (%d KiB)\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	307 c->resv_blocks_gcmerge, c->resv_blocks_gcmerge*c->sector_size/1024));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	308 D1(printk(KERN_DEBUG "Blocks required to GC bad blocks: %d (%d KiB)\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	309 c->resv_blocks_gcbad, c->resv_blocks_gcbad*c->sector_size/1024));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	310 D1(printk(KERN_DEBUG "Amount of dirty space required to GC: %d bytes\n",
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	311 c->nospc_dirty_size));
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	312 }
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	313
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	314 int jffs2_do_mount_fs(struct jffs2_sb_info *c)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	315 {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	316 int i;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	317
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	318 c->free_size = c->flash_size;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	319 c->nr_blocks = c->flash_size / c->sector_size;
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	320 #ifndef __ECOS
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	321 if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	322 c->blocks = vmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks);
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	323 else
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	324 #endif
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	325 c->blocks = kmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks, GFP_KERNEL);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	326 if (!c->blocks)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	327 return -ENOMEM;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	328 for (i=0; i<c->nr_blocks; i++) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	329 INIT_LIST_HEAD(&c->blocks[i].list);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	330 c->blocks[i].offset = i * c->sector_size;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	331 c->blocks[i].free_size = c->sector_size;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	332 c->blocks[i].dirty_size = 0;
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	333 c->blocks[i].wasted_size = 0;
a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	334 c->blocks[i].unchecked_size = 0;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	335 c->blocks[i].used_size = 0;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	336 c->blocks[i].first_node = NULL;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	337 c->blocks[i].last_node = NULL;
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	338 c->blocks[i].bad_count = 0;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	339 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	340
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	341 INIT_LIST_HEAD(&c->clean_list);
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	342 INIT_LIST_HEAD(&c->very_dirty_list);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	343 INIT_LIST_HEAD(&c->dirty_list);
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	344 INIT_LIST_HEAD(&c->erasable_list);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	345 INIT_LIST_HEAD(&c->erasing_list);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	346 INIT_LIST_HEAD(&c->erase_pending_list);
570 a7947d436e85 Update to latest public JFFS2 sources gthomas parents: 208 diff changeset	347 INIT_LIST_HEAD(&c->erasable_pending_wbuf_list);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	348 INIT_LIST_HEAD(&c->erase_complete_list);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	349 INIT_LIST_HEAD(&c->free_list);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	350 INIT_LIST_HEAD(&c->bad_list);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	351 INIT_LIST_HEAD(&c->bad_used_list);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	352 c->highest_ino = 1;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	353
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	354 if (jffs2_build_filesystem(c)) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	355 D1(printk(KERN_DEBUG "build_fs failed\n"));
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	356 jffs2_free_ino_caches(c);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	357 jffs2_free_raw_node_refs(c);
1881 9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	358 #ifndef __ECOS
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	359 if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	360 vfree(c->blocks);
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	361 else
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	362 #endif
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	363 kfree(c->blocks);
9558d3d305bf Merge from public MTD repository asl parents: 1834 diff changeset	364
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	365 return -EIO;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	366 }
1372 121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	367
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	368 jffs2_calc_trigger_levels(c);
121121d3d18f Merge changes from David Woodhouse (bring up to date with MTD project) gthomas parents: 1118 diff changeset	369
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	370 return 0;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: diff changeset	371 }

Mercurial > ecos

annotate packages/fs/jffs2/current/src/build.c @ 3292:7f8e529b4d82 default tip