diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2013-04-29 15:08:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 15:54:36 -0700 |
| commit | 3ac38faa1f09d7eb01497eb50eb83e4f2d132667 (patch) | |
| tree | 4b9d0937ba6e02600b22e94b72e57288c7ed1284 /mm/slub.c | |
| parent | 8f68fa2d1908365cb372b1aebf89d6af4b2b3871 (diff) | |
mm/slub.c: use register_hotmemory_notifier()
Squishes a statement-with-no-effect warning, removes some ifdefs and
shrinks .text by 2 bytes.
Note that this code fails to check for blocking_notifier_chain_register()
failures.
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/slub.c b/mm/slub.c index 4aec53705e4f..a0206df88aba 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -18,6 +18,7 @@ #include <linux/slab.h> #include "slab.h" #include <linux/proc_fs.h> +#include <linux/notifier.h> #include <linux/seq_file.h> #include <linux/kmemcheck.h> #include <linux/cpu.h> @@ -3483,7 +3484,6 @@ int kmem_cache_shrink(struct kmem_cache *s) } EXPORT_SYMBOL(kmem_cache_shrink); -#if defined(CONFIG_MEMORY_HOTPLUG) static int slab_mem_going_offline_callback(void *arg) { struct kmem_cache *s; @@ -3598,7 +3598,10 @@ static int slab_memory_callback(struct notifier_block *self, return ret; } -#endif /* CONFIG_MEMORY_HOTPLUG */ +static struct notifier_block slab_memory_callback_nb = { + .notifier_call = slab_memory_callback, + .priority = SLAB_CALLBACK_PRI, +}; /******************************************************************** * Basic setup of slabs @@ -3651,7 +3654,7 @@ void __init kmem_cache_init(void) create_boot_cache(kmem_cache_node, "kmem_cache_node", sizeof(struct kmem_cache_node), SLAB_HWCACHE_ALIGN); - hotplug_memory_notifier(slab_memory_callback, SLAB_CALLBACK_PRI); + register_hotmemory_notifier(&slab_memory_callback_nb); /* Able to allocate the per node structures */ slab_state = PARTIAL; |