Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755390Ab3DLNKs (ORCPT ); Fri, 12 Apr 2013 09:10:48 -0400 Received: from mailhub.sw.ru ([195.214.232.25]:30016 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753152Ab3DLNKr (ORCPT ); Fri, 12 Apr 2013 09:10:47 -0400 Message-ID: <516807CB.6040208@parallels.com> Date: Fri, 12 Apr 2013 17:10:35 +0400 From: Pavel Emelyanov User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120605 Thunderbird/13.0 MIME-Version: 1.0 To: Andrew Morton CC: Linux MM , Linux Kernel Mailing List Subject: Re: [PATCH 4/5] pagemap: Introduce the /proc/PID/pagemap2 file References: <51669E5F.4000801@parallels.com> <51669EA5.20209@parallels.com> <20130411141944.dc17b3b1c78132eedec06aa6@linux-foundation.org> In-Reply-To: <20130411141944.dc17b3b1c78132eedec06aa6@linux-foundation.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 714 Lines: 23 On 04/12/2013 01:19 AM, Andrew Morton wrote: > On Thu, 11 Apr 2013 15:29:41 +0400 Pavel Emelyanov wrote: > >> This file is the same as the pagemap one, but shows entries with bits >> 55-60 being zero (reserved for future use). Next patch will occupy one >> of them. > > I'm not understanding the motivation for this. What does the current > /proc/pid/pagemap have in those bit positions? A constant PAGE_SHIFT value. > > . > Thanks, Pavel -- 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/