From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755393Ab3BDXHA (ORCPT ); Mon, 4 Feb 2013 18:07:00 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:48819 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753265Ab3BDXG7 (ORCPT ); Mon, 4 Feb 2013 18:06:59 -0500 Date: Mon, 4 Feb 2013 15:06:57 -0800 From: Andrew Morton To: Marek Szyprowski Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, minchan@kernel.org, mgorman@suse.de, kyungmin.park@samsung.com Subject: Re: [PATCH] mm: cma: fix accounting of CMA pages placed in high memory Message-Id: <20130204150657.6d05f76a.akpm@linux-foundation.org> In-Reply-To: <1359973626-3900-1-git-send-email-m.szyprowski@samsung.com> References: <1359973626-3900-1-git-send-email-m.szyprowski@samsung.com> X-Mailer: Sylpheed 3.0.2 (GTK+ 2.20.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 04 Feb 2013 11:27:05 +0100 Marek Szyprowski wrote: > The total number of low memory pages is determined as > totalram_pages - totalhigh_pages, so without this patch all CMA > pageblocks placed in highmem were accounted to low memory. What are the end-user-visible effects of this bug? (This information is needed so that others can make patch-scheduling decisions and should be included in all bugfix changelogs unless it is obvious).