commit 970a8645ca051225a32401e4c80b50fc0a49c081
author Alexey Dobriyan <adobriyan@sw.ru> Tue Oct 16 23:30:09 2007 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Wed Oct 17 08:42:59 2007 -0700
tree 25600770b729500354d025f078d0ce9f655bdea4
parent 40aeb400f68090f92010920ddf284b672a1461b8

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>

kernel/user.c

diff --git a/kernel/user.c b/kernel/user.c
index f42a68e..9cb6f64 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -44,7 +44,6 @@
 	.processes	= ATOMIC_INIT(1),
 	.files		= ATOMIC_INIT(0),
 	.sigpending	= ATOMIC_INIT(0),
-	.mq_bytes	= 0,
 	.locked_shm     = 0,
 #ifdef CONFIG_KEYS
 	.uid_keyring	= &root_user_keyring,
@@ -341,8 +340,9 @@
 		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) {