linux.git/fs/bfs/dir.c, branch v3.0.46

bfs: remove unnecessary dentry_unhash on dir rename

2011-05-28T05:02:50+00:00

Bfs does not have problems with references to unlinked directories.

CC: tigran@aivazian.fsnet.co.uk
Signed-off-by: Sage Weil 
Signed-off-by: Al Viro

vfs: push dentry_unhash on rename_dir into file systems

2011-05-26T11:26:48+00:00

Only a few file systems need this.  Start by pushing it down into each
rename method (except gfs2 and xfs) so that it can be dealt with on a
per-fs basis.

Acked-by: Christoph Hellwig 
Signed-off-by: Sage Weil 
Signed-off-by: Al Viro

bfs: fix bitmap size argument to find_first_zero_bit()

2011-03-21T12:35:12+00:00

The usage of find_first_zero_bit() in bfs_create() is wrong for two
reasons.

The bitmap size argument to find_first_zero_bit() is info->si_lasti but
the correct bitmap size is info->si_lasti + 1 as info->si_lasti is the
last valid index in info->si_imap bitmap.

Another problem is that it is impossible to detect that info->si_imap
bitmap is full because there is an off-by-one bug in the return value
check for find_first_zero_bit().  If no zero bits exist in info->si_imap,
find_first_zero_bit() returns info->si_lasti.  But the check can't catch
it due to the off-by-one.

Signed-off-by: Akinobu Mita 
Acked-by: "Tigran A. Aivazian" 
Signed-off-by: Andrew Morton 
Signed-off-by: Al Viro

new helper: ihold()

2010-10-26T01:26:11+00:00

Clones an existing reference to inode; caller must already hold one.

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

bfs: replace inode uid,gid,mode initialization with helper function

2010-05-21T22:31:25+00:00

Signed-off-by: Dmitry Monakhov 
Signed-off-by: Al Viro

headers: smp_lock.h redux

2009-07-12T19:22:34+00:00

* Remove smp_lock.h from files which don't need it (including some headers!)
* Add smp_lock.h to files which do need it
* Make smp_lock.h include conditional in hardirq.h
  It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

  This will make hardirq.h inclusion cheaper for every PREEMPT=n config
  (which includes allmodconfig/allyesconfig, BTW)

Signed-off-by: Alexey Dobriyan 
Signed-off-by: Linus Torvalds

repair bfs_write_inode(), switch bfs to simple_fsync()

2009-06-12T01:36:14+00:00

Signed-off-by: Al Viro

CRED: Wrap task credential accesses in the BFS filesystem

2008-11-13T23:38:47+00:00

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells 
Reviewed-by: James Morris 
Acked-by: Serge Hallyn 
Cc: Tigran A. Aivazian 
Signed-off-by: James Morris

[PATCH] fix ->llseek for more directories

2008-10-23T09:13:21+00:00

With this patch all directory fops instances that have a readdir
that doesn't take the BKL are switched to generic_file_llseek.

Signed-off-by: Christoph Hellwig