From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753064AbbIPV2U (ORCPT ); Wed, 16 Sep 2015 17:28:20 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:38845 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752983AbbIPV2T (ORCPT ); Wed, 16 Sep 2015 17:28:19 -0400 Date: Wed, 16 Sep 2015 14:28:18 -0700 From: Andrew Morton To: "Kirill A. Shutemov" Cc: Oleg Nesterov , "Kirill A. Shutemov" , Will Deacon , hpa@zytor.com, luto@amacapital.net, dave.hansen@linux.intel.com, mingo@elte.hu, minchan@kernel.org, tglx@linutronix.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: LTP regressions due to 6dc296e7df4c ("mm: make sure all file VMAs have ->vm_ops set") Message-Id: <20150916142818.d0e5c01f0e91c91f9959ad84@linux-foundation.org> In-Reply-To: <20150915134216.GA16093@node.dhcp.inet.fi> References: <20150914105346.GB23878@arm.com> <20150914115800.06242CE@black.fi.intel.com> <20150914170547.GA28535@redhat.com> <20150914182033.GA4165@node.dhcp.inet.fi> <20150915121201.GA10104@redhat.com> <20150915134216.GA16093@node.dhcp.inet.fi> X-Mailer: Sylpheed 3.4.1 (GTK+ 2.24.23; 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 Tue, 15 Sep 2015 16:42:16 +0300 "Kirill A. Shutemov" wrote: > I would rather like to see consolidated fault path between file and anon > with ->vm_ops set for both. So vma_is_anonymous() will be trivial > vma->vm_ops == anon_vm_ops. People are noticing: https://bugzilla.kernel.org/show_bug.cgi?id=104691 How about I send Linus a revert of 6dc296e7df4c while we work out what to do?