Commit a69201d6 authored by Jeff Layton's avatar Jeff Layton Committed by Al Viro

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: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 96948fc6
...@@ -158,13 +158,17 @@ long do_utimes(int dfd, const char __user *filename, struct timespec *times, ...@@ -158,13 +158,17 @@ long do_utimes(int dfd, const char __user *filename, struct timespec *times,
if (!(flags & AT_SYMLINK_NOFOLLOW)) if (!(flags & AT_SYMLINK_NOFOLLOW))
lookup_flags |= LOOKUP_FOLLOW; lookup_flags |= LOOKUP_FOLLOW;
retry:
error = user_path_at(dfd, filename, lookup_flags, &path); error = user_path_at(dfd, filename, lookup_flags, &path);
if (error) if (error)
goto out; goto out;
error = utimes_common(&path, times); error = utimes_common(&path, times);
path_put(&path); path_put(&path);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;
goto retry;
}
} }
out: out:
......
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