vfs: allow utimensat() calls to retry once on an ESTALE error
Clearly, we can't handle the NULL filename case, but we can deal with
the case where there's a real pathname.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/utimes.c b/fs/utimes.c
index bb0696a..f4fb7ec 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -158,13 +158,17 @@
if (!(flags & AT_SYMLINK_NOFOLLOW))
lookup_flags |= LOOKUP_FOLLOW;
-
+retry:
error = user_path_at(dfd, filename, lookup_flags, &path);
if (error)
goto out;
error = utimes_common(&path, times);
path_put(&path);
+ if (retry_estale(error, lookup_flags)) {
+ lookup_flags |= LOOKUP_REVAL;
+ goto retry;
+ }
}
out: