From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiang Liu Subject: [RFC PATCH v1 01/19] mm: introduce accessor function set_max_mapnr() Date: Sat, 13 Apr 2013 23:36:21 +0800 Message-ID: <1365867399-21323-2-git-send-email-jiang.liu@huawei.com> References: <1365867399-21323-1-git-send-email-jiang.liu@huawei.com> Return-path: In-Reply-To: <1365867399-21323-1-git-send-email-jiang.liu@huawei.com> Sender: owner-linux-mm@kvack.org To: Andrew Morton , Yinghai Lu Cc: Jiang Liu , David Rientjes , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , David Howells , Mark Salter , Jianguo Wu , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-arch.vger.kernel.org Introduce accessor 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 --- 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 f9f9f3c..497ebaf 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; -- 1.7.9.5 -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f177.google.com ([209.85.192.177]:58988 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753789Ab3DMPk0 (ORCPT ); Sat, 13 Apr 2013 11:40:26 -0400 From: Jiang Liu Subject: [RFC PATCH v1 01/19] mm: introduce accessor function set_max_mapnr() Date: Sat, 13 Apr 2013 23:36:21 +0800 Message-ID: <1365867399-21323-2-git-send-email-jiang.liu@huawei.com> In-Reply-To: <1365867399-21323-1-git-send-email-jiang.liu@huawei.com> References: <1365867399-21323-1-git-send-email-jiang.liu@huawei.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Andrew Morton , Yinghai Lu Cc: Jiang Liu , David Rientjes , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , David Howells , Mark Salter , Jianguo Wu , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Message-ID: <20130413153621.q4oM6s3zjMnl4ORKkl9jpwt5fQ_hjFThcMYKWFQpXqw@z> Introduce accessor 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 --- 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 f9f9f3c..497ebaf 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; -- 1.7.9.5