Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754952AbcK1VAC (ORCPT ); Mon, 28 Nov 2016 16:00:02 -0500 Received: from mx2.suse.de ([195.135.220.15]:36207 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753148AbcK1U7y (ORCPT ); Mon, 28 Nov 2016 15:59:54 -0500 Subject: Re: [PATCH] mm: page_alloc: High-order per-cpu page allocator v3 To: Christoph Lameter , Mel Gorman References: <20161127131954.10026-1-mgorman@techsingularity.net> <20161128162126.ulbqrslpahg4wdk3@techsingularity.net> <20161128184758.bcz5ar5svv7whnqi@techsingularity.net> Cc: Andrew Morton , Michal Hocko , Johannes Weiner , Linux-MM , Linux-Kernel From: Vlastimil Babka Message-ID: <142ecddd-ded5-a17e-2a30-411d19fda2c4@suse.cz> Date: Mon, 28 Nov 2016 21:59:39 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 604 Lines: 15 On 11/28/2016 07:54 PM, Christoph Lameter wrote: > On Mon, 28 Nov 2016, Mel Gorman wrote: > >> If you have a series aimed at parts of the fragmentation problem or how >> subsystems can avoid tracking 4K pages in some important cases then by >> all means post them. > > I designed SLUB with defrag methods in mind. We could warm up some old > patchsets that where never merged: > > https://lkml.org/lkml/2010/1/29/332 Note that some other solutions to the dentry cache problem (perhaps of a more low-hanging fruit kind) were also discussed at KS/LPC MM panel session: https://lwn.net/Articles/705758/