From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752557AbdAZBiR (ORCPT ); Wed, 25 Jan 2017 20:38:17 -0500 Received: from LGEAMRELO12.lge.com ([156.147.23.52]:38170 "EHLO lgeamrelo12.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752131AbdAZBiQ (ORCPT ); Wed, 25 Jan 2017 20:38:16 -0500 X-Original-SENDERIP: 156.147.1.121 X-Original-MAILFROM: minchan@kernel.org X-Original-SENDERIP: 165.244.249.23 X-Original-MAILFROM: minchan@kernel.org X-Original-SENDERIP: 10.177.223.161 X-Original-MAILFROM: minchan@kernel.org Date: Thu, 26 Jan 2017 10:38:06 +0900 From: Minchan Kim To: Johannes Weiner CC: Andrew Morton , Mel Gorman , , , Subject: Re: [PATCH 3/5] mm: vmscan: remove old flusher wakeup from direct reclaim path Message-ID: <20170126013806.GC21211@bbox> References: <20170123181641.23938-1-hannes@cmpxchg.org> <20170123181641.23938-4-hannes@cmpxchg.org> MIME-Version: 1.0 In-Reply-To: <20170123181641.23938-4-hannes@cmpxchg.org> User-Agent: Mutt/1.5.24 (2015-08-30) X-MIMETrack: Itemize by SMTP Server on LGEKRMHUB02/LGE/LG Group(Release 8.5.3FP6|November 21, 2013) at 2017/01/26 10:38:06, Serialize by Router on LGEKRMHUB02/LGE/LG Group(Release 8.5.3FP6|November 21, 2013) at 2017/01/26 10:38:07, Serialize complete at 2017/01/26 10:38:07 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jan 23, 2017 at 01:16:39PM -0500, Johannes Weiner wrote: > Direct reclaim has been replaced by kswapd reclaim in pretty much all > common memory pressure situations, so this code most likely doesn't > accomplish the described effect anymore. The previous patch wakes up > flushers for all reclaimers when we encounter dirty pages at the tail > end of the LRU. Remove the crufty old direct reclaim invocation. > > Signed-off-by: Johannes Weiner Acked-by: Minchan Kim