ipc: define the slab_memory_callback priority as a constant

This is a trivial patch that defines the priority of slab_memory_callback in
the callback chain as a constant.  This is to prepare for next patch in the
series.

Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Mingming Cao <cmm@us.ibm.com>
Cc: Pierre Peiffer <pierre.peiffer@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/mm/slub.c b/mm/slub.c
index 992ecd4f0d39..b145e798bf3d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2978,7 +2978,7 @@ void __init kmem_cache_init(void)
         kmalloc_caches[0].refcount = -1;
         caches++;
 
-        hotplug_memory_notifier(slab_memory_callback, 1);
+        hotplug_memory_notifier(slab_memory_callback, SLAB_CALLBACK_PRI);
 #endif
 
         /* Able to allocate the per node structures */