From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751222Ab1LRBx3 (ORCPT ); Sat, 17 Dec 2011 20:53:29 -0500 Received: from mail-yx0-f174.google.com ([209.85.213.174]:57536 "EHLO mail-yx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750974Ab1LRBx1 (ORCPT ); Sat, 17 Dec 2011 20:53:27 -0500 Date: Sun, 18 Dec 2011 10:53:14 +0900 From: Minchan Kim To: Mel Gorman Cc: Andrew Morton , Andrea Arcangeli , Minchan Kim , Dave Jones , Jan Kara , Andy Isaacson , Johannes Weiner , Rik van Riel , Nai Xia , Linux-MM , LKML Subject: Re: [PATCH 06/11] mm: compaction: make isolate_lru_page() filter-aware again Message-ID: <20111218015314.GA13069@barrios-laptop.redhat.com> References: <1323877293-15401-1-git-send-email-mgorman@suse.de> <1323877293-15401-7-git-send-email-mgorman@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1323877293-15401-7-git-send-email-mgorman@suse.de> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 14, 2011 at 03:41:28PM +0000, Mel Gorman wrote: > Commit [39deaf85: mm: compaction: make isolate_lru_page() filter-aware] > noted that compaction does not migrate dirty or writeback pages and > that is was meaningless to pick the page and re-add it to the LRU list. > This had to be partially reverted because some dirty pages can be > migrated by compaction without blocking. > > This patch updates "mm: compaction: make isolate_lru_page" by skipping > over pages that migration has no possibility of migrating to minimise > LRU disruption. > > Signed-off-by: Mel Gorman Reviewed-by: Minchan Kim -- Kind regards, Minchan Kim