Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753619AbcLGTMN (ORCPT ); Wed, 7 Dec 2016 14:12:13 -0500 Received: from mail-pg0-f65.google.com ([74.125.83.65]:34345 "EHLO mail-pg0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752435AbcLGTML (ORCPT ); Wed, 7 Dec 2016 14:12:11 -0500 Message-ID: <1481137869.4930.62.camel@edumazet-glaptop3.roam.corp.google.com> Subject: Re: [PATCH] mm: page_alloc: High-order per-cpu page allocator v7 From: Eric Dumazet To: Mel Gorman Cc: Andrew Morton , Christoph Lameter , Michal Hocko , Vlastimil Babka , Johannes Weiner , Jesper Dangaard Brouer , Joonsoo Kim , Linux-MM , Linux-Kernel Date: Wed, 07 Dec 2016 11:11:09 -0800 In-Reply-To: <1481137249.4930.59.camel@edumazet-glaptop3.roam.corp.google.com> References: <20161207101228.8128-1-mgorman@techsingularity.net> <1481137249.4930.59.camel@edumazet-glaptop3.roam.corp.google.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 529 Lines: 15 On Wed, 2016-12-07 at 11:00 -0800, Eric Dumazet wrote: > > So far, I believe net/unix/af_unix.c uses PAGE_ALLOC_COSTLY_ORDER as > max_order, but UDP does not do that yet. For af_unix, it happened in https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=28d6427109d13b0f447cba5761f88d3548e83605 This came to fix a regression, since we had a gigantic slab allocation in af_unix before https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=eb6a24816b247c0be6b2e97e68933072874bbe54