From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758204AbaGARmo (ORCPT ); Tue, 1 Jul 2014 13:42:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:4301 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755139AbaGARmn (ORCPT ); Tue, 1 Jul 2014 13:42:43 -0400 Message-ID: <53B2F303.1010306@redhat.com> Date: Tue, 01 Jul 2014 13:42:27 -0400 From: Rik van Riel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 MIME-Version: 1.0 To: Naoya Horiguchi , Andrew Morton CC: Joonsoo Kim , Hugh Dickins , Hillf Danton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Naoya Horiguchi Subject: Re: [PATCH] rmap: fix pgoff calculation to handle hugepage correctly References: <1404225982-22739-1-git-send-email-n-horiguchi@ah.jp.nec.com> In-Reply-To: <1404225982-22739-1-git-send-email-n-horiguchi@ah.jp.nec.com> X-Enigmail-Version: 1.6 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 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 07/01/2014 10:46 AM, Naoya Horiguchi wrote: > I triggered VM_BUG_ON() in vma_address() when I try to migrate an > anonymous hugepage with mbind() in the kernel v3.16-rc3. This is > because pgoff's calculation in rmap_walk_anon() fails to consider > compound_order() only to have an incorrect value. So this patch > fixes it. > > Signed-off-by: Naoya Horiguchi Acked-by: Rik van Riel - -- All rights reversed -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTsvMDAAoJEM553pKExN6DFIkH/1JOOZq3VtVLMr4f5I7QsqkE /g3QU5JKbCdQZKeV+X1jFbZOyU7/B5gwSTVJMBIlAfFjm/tu21OgUeKAafvgfQHl EVzisjPg1kN5jgtRrO61u4Bnt0rkLWSobBhDpwxslU2nWHNjVlyTBV5Hu2WcpWPB PHoo+qt1/W185tVe6jeb6VpSZwGDXHWj7AQXGCBO3llCIythpbi/+u1IeoL3jW7V UG2/xWZiRVBAoKoD4myvJvY6ny8o+WLpZh505WWJKM6WuTvSPhyOt+K1tWV3Sttq km1aVgnSBYiH6m7if1PwLFtFTlvwhiDI2VZwW+GwhXWak6dh6lS+TssxOw1M9U4= =zYJe -----END PGP SIGNATURE-----