yaffs-ecoscentric-gpl: yaffs_guts.c history

yaffs Fix incorrect handling of deletion flag

Thu, 13 May 2010 14:29:16 +1200

yaffs Fix incorrect handling of deletion flag

Move the reading of the deleted flag so that it picks up any changes.

Notw we need a value on the stack because the object might get
freed and we don't want to access a hanging pointer.

Signed-off-by: Charles Manning

yaffs Clean up compilation warning

Thu, 29 Apr 2010 13:35:30 +1200

yaffs Clean up compilation warning

Don't compile unused functions.

Signed-off-by: Charles Manning

yaffs: Don't do checkpoint for small partitions.

Wed, 28 Apr 2010 12:57:45 +1200

yaffs: Don't do checkpoint for small partitions.

On very small partitions a checkpoint is pointless and wastes space.
For less than 60 blocks we don't try making a checkpoint.

Signed-off-by: Charles Manning

yaffs: Integrate Android tree differences

Tue, 27 Apr 2010 14:06:38 +1200

yaffs: Integrate Android tree differences

This brings in Android changes, and a few more clean-ups to normalise with the
Android tree.

More to follow maybe.

Signed-off-by: Charles Manning

yaffs Some cleanups.

Tue, 20 Apr 2010 17:12:46 +1200

yaffs Some cleanups.

Update copyright messages.
Clean up tracing to use TSTR and KERN_DEBUG.
Remove cvs $Id.
Change /proc/yaffs_debug to /proc/yaffs_stats.
... and a few other clean ups.

Signed-off-by: Charles Manning

yaffs: Change trace flag for partially written blocks

Mon, 26 Apr 2010 11:20:03 +1200

yaffs: Change trace flag for partially written blocks

This was YAFFS_TRACE_ALWAYS which generated a lot of pointless tracing.
Switched to YAFFS_TRACE_SCAN.

Signed-off-by: Charles Manning

yaffs: More background gc tweaks.

Tue, 20 Apr 2010 14:36:01 +1200

yaffs: More background gc tweaks.

Slight changes to urgency thresholds

Fix problem where background gc was interfering with sync resulting in
checkpoints being lost.

Add more tracing for background gc.

Signed-off-by: Charles Manning

yaffs New background garbage collector and related tweaks

Fri, 16 Apr 2010 15:39:16 +1200

yaffs New background garbage collector and related tweaks

This commit
- introduces the yaffs background garbage collection feature
- tweaks the foregound garbage collection to do less work
- changes the way auto-checkpointing works
- tweaks the block refreshing logic.

The aim of the background garbage collector is to do at least some of the
garbage collection in the background so that writing operations will not have
to do as much garbage collection which should make writes faster. The amount of
background garbage collection is controlled by the ratio between the amount of
erased space vs the amount of free space:
* If less than quarter of free space is erased, then background gc is frequent.
* Else if less than a half of the free space is erased, then background gc is
still done reasonably frequently.
* else (at least half of the free space is erased) the background gc is done
infrequently.

Background gc is not attempted if the partition is checkpointed since that would
invalidate the checkpoint.

The auto-checkpointing feature has changed slightly. If the yaffs_auto_checkpoint
value is set to 1 or 2 then the auto checkpointing will be blocked if the erased
space is less than half the free space (ie. the auto-checkpointing is blocked to
allow background gc to progress). Oring in 4 into the yaffs_auto_checkpoint will
do a one-shot override, forcing a checkpoint and suspending background gc until
the partition is dirtied by a write, erase etc.

The block refreshing control has been changed. The dev->param.refreshPeriod now
controls how many blocks are garbage collected before another refresh is performed.
Values around 1000 probably make the best sense.

Signed-off-by: Charles Manning

work in progress

Fri, 16 Apr 2010 12:13:27 +1200

work in progress

Add more test scripts to automate running tests.

Thu, 25 Mar 2010 13:48:41 +1300

Add more test scripts to automate running tests.

Re-enable soft delete for yaffs1 mode.

Fri, 19 Mar 2010 16:45:49 +1300

Re-enable soft delete for yaffs1 mode.

Soft deletion was disabled because it messed up yaffs2 mode.
Soft deletion is not very valuable for yaffs2 mode, but has been
re-enabled for yaffs1 mode where it is far more value.

Also added a parameter to disable soft delete.

Signed-off-by: Charles Manning

Add garbage collection control

Mon, 15 Mar 2010 23:10:33 +0000

Add garbage collection control

Faster block iteration where all blocks are being checked

Fri, 12 Mar 2010 02:48:34 +0000

Faster block iteration where all blocks are being checked

Reduce shrink header writing

Fri, 12 Mar 2010 01:22:48 +0000

Reduce shrink header writing

Update tags when rewriting object header during gc

Thu, 11 Mar 2010 02:44:43 +0000

Update tags when rewriting object header during gc

Add background processing of updated directories

Tue, 09 Mar 2010 04:12:00 +0000

Add background processing of updated directories

Add extra checks to oldest dirty sequence checking

Sun, 07 Mar 2010 23:43:34 +0000

Add extra checks to oldest dirty sequence checking

Dynamically update the oldest dirty sequence number so that it does not have to be recalculated all the time

Sun, 07 Mar 2010 22:07:03 +0000

Dynamically update the oldest dirty sequence number so that it does not have to be recalculated all the time

Add dummy uses for unused variables to clear compilation warnings

Fri, 05 Mar 2010 02:26:27 +0000

Add dummy uses for unused variables to clear compilation warnings

Remove oldestDirtySequence from checkpoint

Fri, 05 Mar 2010 01:49:00 +0000

Remove oldestDirtySequence from checkpoint

Clean up yaffs_FindNiceObject to be thread safe and simpler. Fix code that does a dummy tree insert during write

Tue, 02 Mar 2010 02:29:21 +0000

Clean up yaffs_FindNiceObject to be thread safe and simpler. Fix code that does a dummy tree insert during write

Add block refreshing feature

Thu, 25 Feb 2010 22:41:46 +0000

Add block refreshing feature

Pass correct argument to markSuperBlockDirty

Wed, 24 Feb 2010 21:06:39 +0000

Pass correct argument to markSuperBlockDirty

Rationalise context and parameter handling

Thu, 18 Feb 2010 01:18:04 +0000

Rationalise context and parameter handling

Clean ups and improve some out of memory handling

Wed, 17 Feb 2010 02:01:25 +0000

Clean ups and improve some out of memory handling

Move tracing out of yportenv.h

Mon, 11 Jan 2010 04:06:46 +0000

Move tracing out of yportenv.h

Change direct handle management to use an inode layer to make it consistent with Linux VFS. This is done to improve testing consistency.

Wed, 06 Jan 2010 04:00:23 +0000

Change direct handle management to use an inode layer to make it consistent with Linux VFS. This is done to improve testing consistency.

Fix issue with unlinking hardlinks failing sanity check

Tue, 05 Jan 2010 22:58:15 +0000

Fix issue with unlinking hardlinks failing sanity check

Clear creation counters when deinitialising.

Fri, 01 Jan 2010 23:54:03 +0000

Clear creation counters when deinitialising.

Add more comment for yaffs_PruneWorker function.

Wed, 30 Dec 2009 22:30:12 +0000

Add more comment for yaffs_PruneWorker function.

Fix pruning to work correctly with wide Tnodes

Fri, 25 Dec 2009 01:53:05 +0000

Fix pruning to work correctly with wide Tnodes

Fix obvious 64-bit issues. Mounts and does basic touch, rm etc

Tue, 22 Dec 2009 04:09:06 +0000

Fix obvious 64-bit issues. Mounts and does basic touch, rm etc

New partial block handing to improve robustness

Mon, 14 Dec 2009 22:03:05 +0000

New partial block handing to improve robustness

Change to strnlen() and strncpy() to avoid problems from unbounded strings

Mon, 07 Dec 2009 01:17:33 +0000

Change to strnlen() and strncpy() to avoid problems from unbounded strings

Clear shadowing during garbage collection since its work is done

Sun, 06 Dec 2009 22:53:10 +0000

Clear shadowing during garbage collection since its work is done

Fix problem where symllink alias pointer was being used after free

Thu, 03 Dec 2009 03:42:28 +0000

Fix problem where symllink alias pointer was being used after free

Fix low-mem issue

Wed, 11 Nov 2009 01:40:41 +0000

Fix low-mem issue

Improve out of memory handling

Tue, 10 Nov 2009 23:55:05 +0000

Improve out of memory handling

Add fix for hanging objects

Sat, 07 Nov 2009 02:06:58 +0000

Add fix for hanging objects

Add cleanup for aborted checkpoint

Tue, 03 Nov 2009 02:41:00 +0000

Add cleanup for aborted checkpoint

Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing

Thu, 15 Oct 2009 00:45:46 +0000

Runtime disbale of lazy loading. Fix problem where resize was breading rename shadowing

Improve sync to flush metadata

Wed, 23 Sep 2009 23:24:55 +0000

Improve sync to flush metadata

No need to do chunk finding the group has one chunk

Wed, 09 Sep 2009 00:56:53 +0000

No need to do chunk finding the group has one chunk

Fix 2 problems: rmdir of non-empty dir, handling 255 char names better

Tue, 11 Aug 2009 01:28:42 +0000

Fix 2 problems: rmdir of non-empty dir, handling 255 char names better

Prevent corner case of a block changing state during a partial gc

Wed, 29 Jul 2009 04:30:24 +0000

Prevent corner case of a block changing state during a partial gc

Fix problem where object creation fills flash

Tue, 28 Jul 2009 03:04:54 +0000

Fix problem where object creation fills flash

Only subtract softDeletions once ber block gc.

Mon, 08 Jun 2009 23:50:44 +0000

Only subtract softDeletions once ber block gc.

mtime and ctime should be changed when a directory is changed

Tue, 26 May 2009 04:50:08 +0000

mtime and ctime should be changed when a directory is changed

Get directory mtime to update correctly

Mon, 25 May 2009 02:27:36 +0000

Get directory mtime to update correctly

More formatting fixes

Mon, 09 Mar 2009 04:24:17 +0000

More formatting fixes

Major whitespace/style changes to match Linux checkpatch.pl code style

Fri, 06 Mar 2009 17:20:49 +0000

Major whitespace/style changes to match Linux checkpatch.pl code style

Remove bigus test

Thu, 05 Mar 2009 21:46:46 +0000

Remove bigus test

Change inode deletion to prevent issue raised by YBUG

Thu, 05 Mar 2009 01:45:28 +0000

Change inode deletion to prevent issue raised by YBUG

Change string concats to work with all OSs

Tue, 27 Jan 2009 02:52:45 +0000

Change string concats to work with all OSs

Consolidate with Android fixes

Tue, 27 Jan 2009 02:00:42 +0000

Consolidate with Android fixes

Strip out obsolete WinCE code. No longer needed because WinCE no longer causes page faults within the file system

Fri, 23 Jan 2009 06:36:49 +0000

Strip out obsolete WinCE code. No longer needed because WinCE no longer causes page faults within the file system

Update free chunk count for skipped chunks

Fri, 23 Jan 2009 00:31:01 +0000

Update free chunk count for skipped chunks

Replace printf with proper tracing

Sun, 18 Jan 2009 23:24:08 +0000

Replace printf with proper tracing

Change some object verification

Fri, 16 Jan 2009 02:14:52 +0000

Change some object verification

Handle unfixed ecc errors better when scanning

Fri, 16 Jan 2009 00:44:45 +0000

Handle unfixed ecc errors better when scanning