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  1. 28 7月, 2010 1 次提交
    • E
      fsnotify: use unsigned char * for dentry->d_name.name · 59b0df21
      由 Eric Paris 提交于 
      fsnotify was using char * when it passed around the d_name.name string
internally but it is actually an unsigned char *.  This patch switches
fsnotify to use unsigned and should silence some pointer signess warnings
which have popped out of xfs.  I do not add -Wpointer-sign to the fsnotify
code as there are still issues with kstrdup and strlen which would pop
out needless warnings.
Signed-off-by: NEric Paris <eparis@redhat.com>
      59b0df21
  3. 28 5月, 2010 1 次提交
    • N
      VFS: fix recent breakage of FS_REVAL_DOT · 176306f5
      由 Neil Brown 提交于 
      Commit 1f36f774 broke FS_REVAL_DOT semantics.

In particular, before this patch, the command
   ls -l
in an NFS mounted directory would always check if the directory on the server
had changed and if so would flush and refill the pagecache for the dir.
After this patch, the same "ls -l" will repeatedly return stale date until
the cached attributes for the directory time out.

The following patch fixes this by ensuring the d_revalidate is called by
do_last when "." is being looked-up.
link_path_walk has already called d_revalidate, but in that case LOOKUP_OPEN
is not set so nfs_lookup_verify_inode chooses not to do any validation.

The following patch restores the original behaviour.

Cc: stable@kernel.org
Signed-off-by: NNeilBrown <neilb@suse.de>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      176306f5
  5. 22 5月, 2010 1 次提交
  7. 15 5月, 2010 1 次提交
    • A
      Fix the regression created by "set S_DEAD on unlink()..." commit · d83c49f3
      由 Al Viro 提交于 
      1) i_flags simply doesn't work for mount/unlink race prevention;
we may have many links to file and rm on one of those obviously
shouldn't prevent bind on top of another later on.  To fix it
right way we need to mark _dentry_ as unsuitable for mounting
upon; new flag (DCACHE_CANT_MOUNT) is protected by d_flags and
i_mutex on the inode in question.  Set it (with dont_mount(dentry))
in unlink/rmdir/etc., check (with cant_mount(dentry)) in places
in namespace.c that used to check for S_DEAD.  Setting S_DEAD
is still needed in places where we used to set it (for directories
getting killed), since we rely on it for readdir/rmdir race
prevention.

2) rename()/mount() protection has another bogosity - we unhash
the target before we'd checked that it's not a mountpoint.  Fixed.

3) ancient bogosity in pivot_root() - we locked i_mutex on the
right directory, but checked S_DEAD on the different (and wrong)
one.  Noticed and fixed.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      d83c49f3
  9. 13 5月, 2010 1 次提交
  11. 27 3月, 2010 1 次提交
  13. 07 3月, 2010 1 次提交
  15. 05 3月, 2010 19 次提交
  17. 04 3月, 2010 3 次提交
  19. 19 2月, 2010 1 次提交
  21. 09 2月, 2010 2 次提交
  23. 07 2月, 2010 2 次提交
  25. 04 2月, 2010 1 次提交
  27. 14 1月, 2010 3 次提交
    • A
      Fix the -ESTALE handling in do_filp_open() · 9850c056
      由 Al Viro 提交于 
      Instead of playing sick games with path saving, cleanups, just retry
the entire thing once with LOOKUP_REVAL added.  Post-.34 we'll convert
all -ESTALE handling in there to that style, rather than playing with
many retry loops deep in the call chain.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      9850c056
    • A
      Fix ACC_MODE() for real · 6d125529
      由 Al Viro 提交于 
      commit 5300990c had stepped on a rather
nasty mess: definitions of ACC_MODE used to be different.  Fixed the
resulting breakage, converting them to variant that takes O_... value;
all callers have that and it actually simplifies life (see tomoyo part
of changes).
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      6d125529
    • A
      fix autofs/afs/etc. magic mountpoint breakage · 86acdca1
      由 Al Viro 提交于 
      We end up trying to kfree() nd.last.name on open("/mnt/tmp", O_CREAT)
if /mnt/tmp is an autofs direct mount.  The reason is that nd.last_type
is bogus here; we want LAST_BIND for everything of that kind and we
get LAST_NORM left over from finding parent directory.

So make sure that it *is* set properly; set to LAST_BIND before
doing ->follow_link() - for normal symlinks it will be changed
by __vfs_follow_link() and everything else needs it set that way.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      86acdca1
  29. 31 12月, 2009 1 次提交
  31. 23 12月, 2009 1 次提交