Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758814AbYC0INt (ORCPT ); Thu, 27 Mar 2008 04:13:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755764AbYC0INe (ORCPT ); Thu, 27 Mar 2008 04:13:34 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:53793 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755820AbYC0INd (ORCPT ); Thu, 27 Mar 2008 04:13:33 -0400 Date: Thu, 27 Mar 2008 09:13:18 +0100 From: Ingo Molnar To: Christoph Lameter Cc: linux-kernel@vger.kernel.org, Jeremy Fitzhardinge Subject: Re: [x86] Stricter check in follow_huge_addr() Message-ID: <20080327081318.GA15626@elte.hu> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -0.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-0.5 required=5.9 tests=BAYES_20 autolearn=no SpamAssassin version=3.2.3 -0.5 BAYES_20 BODY: Bayesian spam probability is 5 to 20% [score: 0.1692] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 824 Lines: 23 * Christoph Lameter wrote: > From: Christoph Lameter > Subject: Compound Pages: Stricter check in follow_huge_addr > > The first page of the compound page is determined in > follow_huge_addr() but then PageCompound() only checks if the page is > part of a compound page. PageHead() allows checking if this is indeed > the first page of the compound. thanks Christoph, applied. btw., what type of real-life problem does this address? Did this trigger somewhere? (if yes, do you have any URLs i could put into the changelog?) Ingo -- 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/