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VFS: fix statfs() automounter semantics regression

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commit 5c8a0fbba5 upstream.

No one in their right mind would expect statfs() to not work on a
automounter managed mount point. Fix it.

[ I'm not sure about the "no one in their right mind" part.  It's not
  mounted, and you didn't ask for it to be mounted.  But nobody will
  really care, and this probably makes it match previous semantics, so..
      - Linus ]

This mirrors the fix made to the quota code in 815d405cef.

Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Dan McGee
2011-11-01 18:23:10 -05:00
committed by Greg Kroah-Hartman
parent 690a2c64c5
commit 5a1c73b64b
1 changed files with 1 additions and 1 deletions
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2
fs/statfs.c
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@@ -76,7 +76,7 @@ EXPORT_SYMBOL(vfs_statfs);
int user_statfs(const char __user *pathname, struct kstatfs *st)
{
struct path path;
int error = user_path(pathname, &path);
int error = user_path_at(AT_FDCWD, pathname, LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT, &path);
if (!error) {
error = vfs_statfs(&path, st);
path_put(&path);