From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx183.postini.com [74.125.245.183]) by kanga.kvack.org (Postfix) with SMTP id 12EC26B011C for ; Wed, 29 May 2013 10:45:17 -0400 (EDT) Received: by mail-pa0-f48.google.com with SMTP id kp6so9313022pab.21 for ; Wed, 29 May 2013 07:45:17 -0700 (PDT) From: Jiang Liu Subject: [PATCH, v2 01/13] mm: introduce helper function set_max_mapnr() Date: Wed, 29 May 2013 22:44:40 +0800 Message-Id: <1369838692-26860-2-git-send-email-jiang.liu@huawei.com> In-Reply-To: <1369838692-26860-1-git-send-email-jiang.liu@huawei.com> References: <1369838692-26860-1-git-send-email-jiang.liu@huawei.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Jiang Liu , David Rientjes , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , James Bottomley , Sergei Shtylyov , David Howells , Mark Salter , Jianguo Wu , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Mauro Carvalho Chehab , "David S. Miller" , Mark Brown Introduce an helper function set_max_mapnr() to set global variable max_mapnr. Also unify condition compilation for max_mapnr with CONFIG_NEED_MULTIPLE_NODES instead of CONFIG_DISCONTIGMEM. Signed-off-by: Jiang Liu Cc: Greg Kroah-Hartman Cc: Mauro Carvalho Chehab Cc: "David S. Miller" Cc: Mark Brown Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org --- include/linux/mm.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 7e39aa1..bde812e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -25,8 +25,15 @@ struct file_ra_state; struct user_struct; struct writeback_control; -#ifndef CONFIG_DISCONTIGMEM /* Don't use mapnrs, do it properly */ +#ifndef CONFIG_NEED_MULTIPLE_NODES /* Don't use mapnrs, do it properly */ extern unsigned long max_mapnr; + +static inline void set_max_mapnr(unsigned long limit) +{ + max_mapnr = limit; +} +#else +static inline void set_max_mapnr(unsigned long limit) { } #endif extern unsigned long totalram_pages; -- 1.8.1.2 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org