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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-11 12:10:16 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:50:09 -0500 |
| commit | 60e66b48ca20819d97ec4851007accc0b013985a (patch) | |
| tree | 586eb8952207bf554639caab93e6fb91477effe5 /fs/xattr.c | |
| parent | 49e09e1cc576daa99ea22f3a3c699062c34f8c0f (diff) | |
| download | lwn-60e66b48ca20819d97ec4851007accc0b013985a.tar.gz lwn-60e66b48ca20819d97ec4851007accc0b013985a.zip | |
vfs: make getxattr retry once on an ESTALE error
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xattr.c')
| -rw-r--r-- | fs/xattr.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/xattr.c b/fs/xattr.c index 74d36e063c8d..24833de649f8 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -486,12 +486,17 @@ SYSCALL_DEFINE4(getxattr, const char __user *, pathname, { struct path path; ssize_t error; - - error = user_path(pathname, &path); + unsigned int lookup_flags = LOOKUP_FOLLOW; +retry: + error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path); if (error) return error; error = getxattr(path.dentry, name, value, size); path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } return error; } |