SLAB_PANIC more (proc, posix-timers, shmem)

These aren't modular, so SLAB_PANIC is OK.

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/posix-timers.c

@@ -241,7 +241,8 @@ static __init int init_posix_timers(void)
 	register_posix_clock(CLOCK_MONOTONIC, &clock_monotonic);
 
 	posix_timers_cache = kmem_cache_create("posix_timers_cache",
-					sizeof (struct k_itimer), 0, 0, NULL);
+					sizeof (struct k_itimer), 0, SLAB_PANIC,
+					NULL);
 	idr_init(&posix_timers_id);
 	return 0;
 }