From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030683Ab2CAKf2 (ORCPT ); Thu, 1 Mar 2012 05:35:28 -0500 Received: from mga03.intel.com ([143.182.124.21]:28777 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030531Ab2CAKf0 (ORCPT ); Thu, 1 Mar 2012 05:35:26 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="113232124" Date: Thu, 1 Mar 2012 18:30:14 +0800 From: Fengguang Wu To: Johannes Weiner Cc: Andrew Morton , Greg Thelen , Jan Kara , Ying Han , KAMEZAWA Hiroyuki , Rik van Riel , Johannes Weiner , Linux Memory Management List , LKML Subject: Re: [PATCH 8/9] mm: dont set __GFP_WRITE on ramfs/sysfs writes Message-ID: <20120301103014.GA12705@localhost> References: <20120228140022.614718843@intel.com> <20120228144747.440418051@intel.com> <20120301101354.GD1665@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120301101354.GD1665@cmpxchg.org> 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 Thu, Mar 01, 2012 at 11:13:54AM +0100, Johannes Weiner wrote: > On Tue, Feb 28, 2012 at 10:00:30PM +0800, Fengguang Wu wrote: > > Try to avoid page reclaim waits when writing to ramfs/sysfs etc. > > > > Maybe not a big deal... > > This looks like a separate fix that would make sense standalone. It's > not just the waits, there is not much of a point in skipping zones > during allocation based on the dirty usage which they'll never > contribute to. Could you maybe pull this up front? OK, thanks! > > CC: Johannes Weiner > > Signed-off-by: Fengguang Wu > > Acked-by: Johannes Weiner