From: Andrew Morton <akpm@linux-foundation.org>

Cc: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/user.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN kernel/user.c~userc-ifdef-mq_bytes-fix kernel/user.c
--- a/kernel/user.c~userc-ifdef-mq_bytes-fix
+++ a/kernel/user.c
@@ -174,8 +174,9 @@ struct user_struct * alloc_uid(struct us
 		atomic_set(&new->inotify_watches, 0);
 		atomic_set(&new->inotify_devs, 0);
 #endif
-
+#ifdef CONFIG_POSIX_MQUEUE
 		new->mq_bytes = 0;
+#endif
 		new->locked_shm = 0;
 
 		if (alloc_uid_keyring(new, current) < 0) {
_