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| author | Jeff Layton <jlayton@redhat.com> | 2012-12-11 12:10:15 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:50:09 -0500 |
| commit | 49e09e1cc576daa99ea22f3a3c699062c34f8c0f (patch) | |
| tree | c4f24094db83a0b24cad41ef20803e312f0fa18f /fs/xattr.c | |
| parent | 68f1bb8bb89e0bb813c893a42373a26ebdab7f9c (diff) | |
| download | lwn-49e09e1cc576daa99ea22f3a3c699062c34f8c0f.tar.gz lwn-49e09e1cc576daa99ea22f3a3c699062c34f8c0f.zip | |
vfs: allow lsetxattr() to retry once on ESTALE errors
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 c5e90d2d751f..74d36e063c8d 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -394,8 +394,9 @@ SYSCALL_DEFINE5(lsetxattr, const char __user *, pathname, { struct path path; int error; - - error = user_lpath(pathname, &path); + unsigned int lookup_flags = 0; +retry: + error = user_path_at(AT_FDCWD, pathname, lookup_flags, &path); if (error) return error; error = mnt_want_write(path.mnt); @@ -404,6 +405,10 @@ SYSCALL_DEFINE5(lsetxattr, const char __user *, pathname, mnt_drop_write(path.mnt); } path_put(&path); + if (retry_estale(error, lookup_flags)) { + lookup_flags |= LOOKUP_REVAL; + goto retry; + } return error; } |