From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id 08AEE6B0169 for ; Fri, 12 Aug 2011 11:27:41 -0400 (EDT) Message-ID: <4E454656.9010608@redhat.com> Date: Fri, 12 Aug 2011 11:27:18 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH 7/7] mm: vmscan: Immediately reclaim end-of-LRU dirty pages when writeback completes References: <1312973240-32576-1-git-send-email-mgorman@suse.de> <1312973240-32576-8-git-send-email-mgorman@suse.de> In-Reply-To: <1312973240-32576-8-git-send-email-mgorman@suse.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Linux-MM , LKML , XFS , Dave Chinner , Christoph Hellwig , Johannes Weiner , Wu Fengguang , Jan Kara , Minchan Kim On 08/10/2011 06:47 AM, Mel Gorman wrote: > When direct reclaim encounters a dirty page, it gets recycled around > the LRU for another cycle. This patch marks the page PageReclaim > similar to deactivate_page() so that the page gets reclaimed almost > immediately after the page gets cleaned. This is to avoid reclaiming > clean pages that are younger than a dirty page encountered at the > end of the LRU that might have been something like a use-once page. > > Signed-off-by: Mel Gorman > Acked-by: Johannes Weiner I'm thinking we may need to add some code to ClearPageReclaim to mark_page_accessed, but that would be completely independent of these patches, so ... Reviewed-by: Rik van Riel -- All rights reversed -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org