From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yk0-f170.google.com (mail-yk0-f170.google.com [209.85.160.170]) by kanga.kvack.org (Postfix) with ESMTP id DF9549003C7 for ; Tue, 25 Aug 2015 10:04:42 -0400 (EDT) Received: by ykll84 with SMTP id l84so156311728ykl.0 for ; Tue, 25 Aug 2015 07:04:42 -0700 (PDT) Received: from m12-18.163.com (m12-18.163.com. [220.181.12.18]) by mx.google.com with ESMTP id u197si12464268ywf.194.2015.08.25.07.04.41 for ; Tue, 25 Aug 2015 07:04:42 -0700 (PDT) From: Yaowei Bai Subject: [PATCH 1/2] mm/page_alloc: change sysctl_lower_zone_reserve_ratio to sysctl_lowmem_reserve_ratio Date: Tue, 25 Aug 2015 22:01:30 +0800 Message-Id: <1440511291-3990-1-git-send-email-bywxiaobai@163.com> Sender: owner-linux-mm@kvack.org List-ID: To: akpm@linux-foundation.org, mgorman@suse.de, vbabka@suse.cz, mhocko@kernel.org, js1304@gmail.com, hannes@cmpxchg.org, alexander.h.duyck@redhat.com, sasha.levin@oracle.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org We use sysctl_lowmem_reserve_ratio rather than sysctl_lower_zone_reserve_ratio to determine how aggressive the kernel is in defending lowmem from the possibility of being captured into pinned user memory. To avoid misleading, correct it in some comments. Signed-off-by: Yaowei Bai --- mm/page_alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 0a0acdb..b730f7d 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6043,7 +6043,7 @@ void __init page_alloc_init(void) } /* - * calculate_totalreserve_pages - called when sysctl_lower_zone_reserve_ratio + * calculate_totalreserve_pages - called when sysctl_lowmem_reserve_ratio * or min_free_kbytes changes. */ static void calculate_totalreserve_pages(void) @@ -6087,7 +6087,7 @@ static void calculate_totalreserve_pages(void) /* * setup_per_zone_lowmem_reserve - called whenever - * sysctl_lower_zone_reserve_ratio changes. Ensures that each zone + * sysctl_lowmem_reserve_ratio changes. Ensures that each zone * has a correct pages reserved value, so an adequate number of * pages are left in the zone after a successful __alloc_pages(). */ -- 1.9.1 -- 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