From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f49.google.com (mail-wm0-f49.google.com [74.125.82.49]) by kanga.kvack.org (Postfix) with ESMTP id 8E85D6B0255 for ; Thu, 19 Nov 2015 13:59:41 -0500 (EST) Received: by wmec201 with SMTP id c201so131157108wme.1 for ; Thu, 19 Nov 2015 10:59:41 -0800 (PST) Received: from gum.cmpxchg.org (gum.cmpxchg.org. [85.214.110.215]) by mx.google.com with ESMTPS id h66si13925031wmf.55.2015.11.19.10.59.40 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 19 Nov 2015 10:59:40 -0800 (PST) Date: Thu, 19 Nov 2015 13:59:32 -0500 From: Johannes Weiner 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> Sender: owner-linux-mm@kvack.org List-ID: 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 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, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org