linux.git/fs/ext2, branch v2.6.35-rc4

ext2: update ctime when changing the file's permission by setfacl

2010-06-24T23:20:37+00:00

ext2 didn't update the ctime of the file when its permission was changed.

Steps to reproduce:
 # touch aaa
 # stat -c %Z aaa
 1275289822
 # setfacl -m  'u::x,g::x,o::x' aaa
 # stat -c %Z aaa
 1275289822                         <- unchanged

But, according to the spec of the ctime, ext2 must update it.

Port of ext3 patch by Miao Xie .

Signed-off-by: Jan Kara

fix truncate inode time modification breakage

2010-06-04T21:16:30+00:00

mtime and ctime should be changed only if the file size has actually
changed. Patches changing ext2 and tmpfs from vmtruncate to new truncate
sequence has caused regressions where they always update timestamps.

There is some strange cases in POSIX where truncate(2) must not update
times unless the size has acutally changed, see 6e656be89.

This area is all still rather buggy in different ways in a lot of
filesystems and needs a cleanup and audit (ideally the vfs will provide
a simple attribute or call to direct all filesystems exactly which
attributes to change). But coming up with the best solution will take a
while and is not appropriate for rc anyway.

So fix recent regression for now.

Signed-off-by: Nick Piggin 
Signed-off-by: Al Viro

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

2010-05-30T16:11:11+00:00

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Convert quota statistics to generic percpu_counter
  ext3 uses rb_node = NULL; to zero rb_root.
  quota: Fixup dquot_transfer
  reiserfs: Fix resuming of quotas on remount read-write
  pohmelfs: Remove dead quota code
  ufs: Remove dead quota code
  udf: Remove dead quota code
  quota: rename default quotactl methods to dquot_
  quota: explicitly set ->dq_op and ->s_qcop
  quota: drop remount argument to ->quota_on and ->quota_off
  quota: move unmount handling into the filesystem
  quota: kill the vfs_dq_off and vfs_dq_quota_on_remount wrappers
  quota: move remount handling into the filesystem
  ocfs2: Fix use after free on remount read-only

Fix up conflicts in fs/ext4/super.c and fs/ufs/file.c

ext2: convert to use the new truncate convention.

2010-05-28T02:15:57+00:00

I also have commented a possible bug in existing ext2 code, marked with XXX.

Cc: linux-ext4@vger.kernel.org
Cc: Christoph Hellwig 
Signed-off-by: Nick Piggin 
Signed-off-by: Al Viro

rename the generic fsync implementations

2010-05-28T02:06:06+00:00

We don't name our generic fsync implementations very well currently.
The no-op implementation for in-memory filesystems currently is called
simple_sync_file which doesn't make too much sense to start with,
the the generic one for simple filesystems is called simple_fsync
which can lead to some confusion.

This patch renames the generic file fsync method to generic_file_fsync
to match the other generic_file_* routines it is supposed to be used
with, and the no-op implementation to noop_fsync to make it obvious
what to expect.  In addition add some documentation for both methods.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

drop unused dentry argument to ->fsync

2010-05-28T02:05:02+00:00

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

quota: rename default quotactl methods to dquot_

2010-05-24T12:10:17+00:00

Follow the dquot_* style used elsewhere in dquot.c.

[Jan Kara: Fixed up missing conversion of ext2]

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jan Kara

quota: explicitly set ->dq_op and ->s_qcop

2010-05-24T12:10:17+00:00

Only set the quota operation vectors if the filesystem actually supports
quota instead of doing it for all filesystems in alloc_super().

[Jan Kara: Export dquot_operations and vfs_quotactl_ops]

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jan Kara

quota: move unmount handling into the filesystem

2010-05-24T12:09:12+00:00

Currently the VFS calls into the quotactl interface for unmounting
filesystems.  This means filesystems with their own quota handling
can't easily distinguish between user-space originating quotaoff
and an unount.  Instead move the responsibily of the unmount handling
into the filesystem to be consistent with all other dquot handling.

Note that we do call dquot_disable a lot later now, e.g. after
a sync_filesystem.  But this is fine as the quota code does all its
writes via blockdev's mapping and that is synced even later.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jan Kara

quota: kill the vfs_dq_off and vfs_dq_quota_on_remount wrappers

2010-05-24T12:06:40+00:00

Instead of having wrappers in the VFS namespace export the dquot_suspend
and dquot_resume helpers directly.  Also rename vfs_quota_disable to
dquot_disable while we're at it.

[Jan Kara: Moved dquot_suspend to quotaops.h and made it inline]

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jan Kara