Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264991AbTFLUu1 (ORCPT ); Thu, 12 Jun 2003 16:50:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264993AbTFLUu0 (ORCPT ); Thu, 12 Jun 2003 16:50:26 -0400 Received: from pao-ex01.pao.digeo.com ([12.47.58.20]:23989 "EHLO pao-ex01.pao.digeo.com") by vger.kernel.org with ESMTP id S264991AbTFLUu0 (ORCPT ); Thu, 12 Jun 2003 16:50:26 -0400 Date: Thu, 12 Jun 2003 14:00:14 -0700 From: Andrew Morton To: dmccr@us.ibm.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Fix vmtruncate race and distributed filesystem race Message-Id: <20030612140014.32b7244d.akpm@digeo.com> In-Reply-To: <20030612134946.450e0f77.akpm@digeo.com> References: <133430000.1055448961@baldur.austin.ibm.com> <20030612134946.450e0f77.akpm@digeo.com> X-Mailer: Sylpheed version 0.9.0pre1 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 12 Jun 2003 21:04:11.0749 (UTC) FILETIME=[2C412150:01C33126] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 613 Lines: 21 Andrew Morton wrote: > > do_no_page() > { > int sequence = 0; > ... > > retry: > new_page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &sequence); > .... > if (vma->vm_ops->revalidate && vma->vm_opa->revalidate(vma, sequence)) > goto retry; > } And this does require that ->nopage be entered with page_table_lock held, and that it drop it. - 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/