From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 23 May 2002 17:57:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 23 May 2002 17:57:10 -0400 Received: from to-velocet.redhat.com ([216.138.202.10]:23801 "EHLO touchme.toronto.redhat.com") by vger.kernel.org with ESMTP id ; Thu, 23 May 2002 17:57:08 -0400 Date: Thu, 23 May 2002 17:57:08 -0400 From: Benjamin LaHaise To: Kasper Dupont Cc: Linux Kernel , linux-mm@redhat.com Subject: Re: [PATCH] 2.4.19-pre8 vm86 smp locking fix Message-ID: <20020523175708.A29031@redhat.com> In-Reply-To: <20020523165105.A27881@redhat.com> <3CED60D7.9E5032D7@daimi.au.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 23, 2002 at 11:36:23PM +0200, Kasper Dupont wrote: > The pagetable access in arch/i386/kernel/vm86.c is related > to another access in arch/i386/mm/fault.c. Did anybody > verify that the other file does correct locking? That should be safe: the vmalloc pgds can only be filled from the main kernel page table. They never change afterwards, so even if two CPUs entered that code at the same time it would be okay. -ben -- "You will be reincarnated as a toad; and you will be much happier."