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mem-hotplug: separate setup_per_cpu_pageset() into separate functions

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No behavior change here.

Move some of setup_per_cpu_pageset() code into a new function
setup_zone_pageset() that will be useful for memory hotplug.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
Reviewed-by: Andi Kleen <andi.kleen@intel.com>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Wu Fengguang
2010-05-24 14:32:49 -07:00
committed by Linus Torvalds
parent 0faa56389c
commit 319774e25f
1 changed files with 20 additions and 17 deletions
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23
mm/page_alloc.c
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@@ -3292,18 +3292,10 @@ static void setup_pagelist_highmark(struct per_cpu_pageset *p,
pcp->batch = PAGE_SHIFT * 8; pcp->batch = PAGE_SHIFT * 8;
} }
/* static __meminit void setup_zone_pageset(struct zone *zone)
* Allocate per cpu pagesets and initialize them.
* Before this call only boot pagesets were available.
* Boot pagesets will no longer be used by this processorr
* after setup_per_cpu_pageset().
*/
void __init setup_per_cpu_pageset(void)
{ {
struct zone *zone;
int cpu; int cpu;
for_each_populated_zone(zone) {
zone->pageset = alloc_percpu(struct per_cpu_pageset); zone->pageset = alloc_percpu(struct per_cpu_pageset);
for_each_possible_cpu(cpu) { for_each_possible_cpu(cpu) {
@@ -3316,7 +3308,18 @@ void __init setup_per_cpu_pageset(void)
(zone->present_pages / (zone->present_pages /
percpu_pagelist_fraction)); percpu_pagelist_fraction));
} }
} }
/*
* Allocate per cpu pagesets and initialize them.
* Before this call only boot pagesets were available.
*/
void __init setup_per_cpu_pageset(void)
{
struct zone *zone;
for_each_populated_zone(zone)
setup_zone_pageset(zone);
} }
static noinline __init_refok static noinline __init_refok