From: Cody P Schafer <cody@linux.vnet.ibm.com>
Date: Thu, 27 Jun 2013 23:51:24 +0000 (+1000)
Subject: mm/page_alloc: in zone_pcp_update(), uze zone_pageset_init()
X-Git-Tag: next-20130628~3^2~578
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8ada1efc5cc060a7cdb25762683f98bc7d0b3ad2;p=karo-tx-linux.git

mm/page_alloc: in zone_pcp_update(), uze zone_pageset_init()

Previously, zone_pcp_update() called pageset_set_batch() directly,
essentially assuming that percpu_pagelist_fraction == 0.  Correct this by
calling zone_pageset_init(), which chooses the appropriate ->batch and
->high calculations.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Gilad Ben-Yossef <gilad@benyossef.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ee6fe7faabad..c7344d17660b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6098,11 +6098,9 @@ void free_contig_range(unsigned long pfn, unsigned nr_pages)
 void __meminit zone_pcp_update(struct zone *zone)
 {
 	unsigned cpu;
-	unsigned long batch;
 	mutex_lock(&pcp_batch_high_lock);
-	batch = zone_batchsize(zone);
 	for_each_possible_cpu(cpu)
-		pageset_set_batch(per_cpu_ptr(zone->pageset, cpu), batch);
+		zone_pageset_init(zone, cpu);
 	mutex_unlock(&pcp_batch_high_lock);
 }
 #endif