linux-kernel - [PATCH v3 09/11] mm/page_alloc: factor zone_pageset_init() out of setup_zone

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Date:	Wed, 10 Apr 2013 11:23:37 -0700
From:	Cody P Schafer <cody@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Gilad Ben-Yossef <gilad@...yossef.com>,
	Simon Jeons <simon.jeons@...il.com>,
	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	Mel Gorman <mgorman@...e.de>, Linux MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Cody P Schafer <cody@...ux.vnet.ibm.com>
Subject: [PATCH v3 09/11] mm/page_alloc: factor zone_pageset_init() out of setup_zone_pageset()

Signed-off-by: Cody P Schafer <cody@...ux.vnet.ibm.com>
---
 mm/page_alloc.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index b0762c7..749b6e1 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4076,22 +4076,25 @@ static void setup_pagelist_highmark(struct per_cpu_pageset *p,
 	pageset_update(&p->pcp, high, batch);
 }
 
+static void __meminit zone_pageset_init(struct zone *zone, int cpu)
+{
+	struct per_cpu_pageset *pcp = per_cpu_ptr(zone->pageset, cpu);
+
+	pageset_init(pcp);
+	if (percpu_pagelist_fraction)
+		setup_pagelist_highmark(pcp,
+			(zone->managed_pages /
+				percpu_pagelist_fraction));
+	else
+		pageset_set_batch(pcp, zone_batchsize(zone));
+}
+
 static void __meminit setup_zone_pageset(struct zone *zone)
 {
 	int cpu;
-
 	zone->pageset = alloc_percpu(struct per_cpu_pageset);
-
-	for_each_possible_cpu(cpu) {
-		struct per_cpu_pageset *pcp = per_cpu_ptr(zone->pageset, cpu);
-
-		setup_pageset(pcp, zone_batchsize(zone));
-
-		if (percpu_pagelist_fraction)
-			setup_pagelist_highmark(pcp,
-				(zone->managed_pages /
-					percpu_pagelist_fraction));
-	}
+	for_each_possible_cpu(cpu)
+		zone_pageset_init(zone, cpu);
 }
 
 /*
-- 
1.8.2.1

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