Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934533AbbKSS7n (ORCPT ); Thu, 19 Nov 2015 13:59:43 -0500 Received: from gum.cmpxchg.org ([85.214.110.215]:44628 "EHLO gum.cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933969AbbKSS7m (ORCPT ); Thu, 19 Nov 2015 13:59:42 -0500 Date: Thu, 19 Nov 2015 13:59:32 -0500 From: Johannes Weiner To: Vladimir Davydov Cc: Andrew Morton , Michal Hocko , Tejun Heo , Greg Thelen , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/6] Revert "gfp: add __GFP_NOACCOUNT" Message-ID: <20151119185932.GB3941@cmpxchg.org> References: <7edf2c7333f027ad6a890884558fde60b5144140.1447172835.git.vdavydov@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7edf2c7333f027ad6a890884558fde60b5144140.1447172835.git.vdavydov@virtuozzo.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1071 Lines: 22 On Tue, Nov 10, 2015 at 09:34:03PM +0300, Vladimir Davydov wrote: > This reverts commit 8f4fc071b1926d0b20336e2b3f8ab85c94c734c5. > > Black-list kmem accounting policy (aka __GFP_NOACCOUNT) turned out to be > fragile and difficult to maintain, because there seem to be many more > allocations that should not be accounted than those that should be. > Besides, false accounting an allocation might result in much worse > consequences than not accounting at all, namely increased memory > consumption due to pinned dead kmem caches. > > So it was decided to switch to the white-list policy. This patch reverts > bits introducing the black-list policy. The white-list policy will be > introduced later in the series. > > Signed-off-by: Vladimir Davydov Acked-by: Johannes Weiner -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/