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authorAndrew Morton <akpm@linux-foundation.org>2013-04-29 15:08:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-04-29 15:54:36 -0700
commit3ac38faa1f09d7eb01497eb50eb83e4f2d132667 (patch)
tree4b9d0937ba6e02600b22e94b72e57288c7ed1284 /mm
parent8f68fa2d1908365cb372b1aebf89d6af4b2b3871 (diff)
downloadlinux-3ac38faa1f09d7eb01497eb50eb83e4f2d132667.tar.gz
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')
-rw-r--r--mm/slub.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 4aec53705e4..a0206df88ab 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;