user.c: #ifdef ->mq_bytes

For those who deselect POSIX message queues.

Reduces SLAB size of user_struct from 64 to 32 bytes here, SLUB size -- from
40 bytes to 32 bytes.

[akpm@linux-foundation.org: fix build]
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 57166582a3f5..884699fa8c1f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -518,8 +518,10 @@ struct user_struct {
         atomic_t inotify_watches; /* How many inotify watches does this user have? */
         atomic_t inotify_devs;  /* How many inotify devs does this user have opened? */
 #endif
+#ifdef CONFIG_POSIX_MQUEUE
         /* protected by mq_lock */
         unsigned long mq_bytes; /* How many bytes can be allocated to mqueue? */
+#endif
         unsigned long locked_shm; /* How many pages of mlocked shm ? */
 
 #ifdef CONFIG_KEYS