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ipc: define the slab_memory_callback priority as a constant

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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>
This commit is contained in:
Nadia Derbey 2008-04-29 01:00:41 -07:00 committed by Linus Torvalds
parent 4d89dc6ab2
commit 0c40ba4fd6
2 changed files with 7 additions and 1 deletions
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6
include/linux/memory.h
View File

@ -53,6 +53,12 @@ struct memory_notify {
struct notifier_block;
struct mem_section;
/*
* Priorities for the hotplug memory callback routines (stored in decreasing
* order in the callback chain)
*/
#define SLAB_CALLBACK_PRI 1
#ifndef CONFIG_MEMORY_HOTPLUG_SPARSE
static inline int memory_dev_init(void)
{

2
mm/slub.c
View File

@ -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 */