[RFC PATCH 3/4] [RESEND] Defining the slab_memory_callback priority as a constant

Nadia.Derbey
2008-01-14T15:58:46Z

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[PATCH 03/04]

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>

---
include/linux/memory.h | 6 ++++++
mm/slub.c | 2 +-
2 files changed, 7 insertions(+), 1 deletion(-)

Index: linux-2.6.24-rc7/include/linux/memory.h
===================================================================
--- linux-2.6.24-rc7.orig/include/linux/memory.h 2008-01-11 14:08:41.000000000 +0100
+++ linux-2.6.24-rc7/include/linux/memory.h 2008-01-11 16:26:03.000000000 +0100
@@ -54,6 +54,12 @@ 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)
{
Index: linux-2.6.24-rc7/mm/slub.c
===================================================================
--- linux-2.6.24-rc7.orig/mm/slub.c 2008-01-11 14:08:45.000000000 +0100
+++ linux-2.6.24-rc7/mm/slub.c 2008-01-11 16:27:11.000000000 +0100
@@ -2816,7 +2816,7 @@ 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 */

--