From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754523Ab2D1QZ0 (ORCPT ); Sat, 28 Apr 2012 12:25:26 -0400 Received: from mailhub.sw.ru ([195.214.232.25]:2638 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752311Ab2D1QZZ (ORCPT ); Sat, 28 Apr 2012 12:25:25 -0400 Message-ID: <4F9C19DB.2050601@parallels.com> Date: Sat, 28 Apr 2012 20:24:59 +0400 From: Pavel Emelyanov User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120209 Thunderbird/10.0.1 MIME-Version: 1.0 To: Konstantin Khlebnikov CC: Andrew Morton , Andi Kleen , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , Naoya Horiguchi , KAMEZAWA Hiroyuki Subject: Re: [PATCH bugfix] proc/pagemap: correctly report non-present ptes and holes between vmas References: <20120428162229.15658.56316.stgit@zurg> In-Reply-To: <20120428162229.15658.56316.stgit@zurg> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/28/2012 08:22 PM, Konstantin Khlebnikov wrote: > This patch resets current pagemap-entry if current pte isn't present, > or if current vma is over. Otherwise pagemap reports last entry again and again. > > non-present pte reporting was broken in commit v3.3-3738-g092b50b > ("pagemap: introduce data structure for pagemap entry") > > reporting for holes was broken in commit v3.3-3734-g5aaabe8 > ("pagemap: avoid splitting thp when reading /proc/pid/pagemap") > > Signed-off-by: Konstantin Khlebnikov > Reported-by: Pavel Emelyanov > Cc: Naoya Horiguchi > Cc: KAMEZAWA Hiroyuki > Cc: Andi Kleen Acked-by: Pavel Emelyanov