Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1162829Ab3DEUeW (ORCPT ); Fri, 5 Apr 2013 16:34:22 -0400 Received: from e39.co.us.ibm.com ([32.97.110.160]:37259 "EHLO e39.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1162735Ab3DEUeU (ORCPT ); Fri, 5 Apr 2013 16:34:20 -0400 From: Cody P Schafer To: Andrew Morton Cc: Mel Gorman , Linux MM , LKML , Cody P Schafer Subject: [PATCH 1/3] mm/page_alloc: factor out setting of pcp->high and pcp->batch. Date: Fri, 5 Apr 2013 13:33:48 -0700 Message-Id: <1365194030-28939-2-git-send-email-cody@linux.vnet.ibm.com> X-Mailer: git-send-email 1.8.2 In-Reply-To: <1365194030-28939-1-git-send-email-cody@linux.vnet.ibm.com> References: <1365194030-28939-1-git-send-email-cody@linux.vnet.ibm.com> X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13040520-3620-0000-0000-000001EA9CA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1858 Lines: 56 Creates pageset_set_batch() for use in setup_pageset(). pageset_set_batch() imitates the functionality of setup_pagelist_highmark(), but uses the boot time (percpu_pagelist_fraction == 0) calculations for determining ->high based on ->batch. Signed-off-by: Cody P Schafer --- mm/page_alloc.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 8fcced7..5877cf0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4004,6 +4004,14 @@ static int __meminit zone_batchsize(struct zone *zone) #endif } +/* a companion to setup_pagelist_highmark() */ +static void pageset_set_batch(struct per_cpu_pageset *p, unsigned long batch) +{ + struct per_cpu_pages *pcp = &p->pcp; + pcp->high = 6 * batch; + pcp->batch = max(1UL, 1 * batch); +} + static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch) { struct per_cpu_pages *pcp; @@ -4013,8 +4021,7 @@ static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch) pcp = &p->pcp; pcp->count = 0; - pcp->high = 6 * batch; - pcp->batch = max(1UL, 1 * batch); + pageset_set_batch(p, batch); for (migratetype = 0; migratetype < MIGRATE_PCPTYPES; migratetype++) INIT_LIST_HEAD(&pcp->lists[migratetype]); } @@ -4023,7 +4030,6 @@ static void setup_pageset(struct per_cpu_pageset *p, unsigned long batch) * setup_pagelist_highmark() sets the high water mark for hot per_cpu_pagelist * to the value high for the pageset p. */ - static void setup_pagelist_highmark(struct per_cpu_pageset *p, unsigned long high) { -- 1.8.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/