Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263550AbTENSLt (ORCPT ); Wed, 14 May 2003 14:11:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263567AbTENSLs (ORCPT ); Wed, 14 May 2003 14:11:48 -0400 Received: from pixpat.austin.ibm.com ([192.35.232.241]:25276 "EHLO baldur.austin.ibm.com") by vger.kernel.org with ESMTP id S263550AbTENSLr (ORCPT ); Wed, 14 May 2003 14:11:47 -0400 Date: Wed, 14 May 2003 13:24:25 -0500 From: Dave McCracken To: Andrew Morton cc: mika.penttila@kolumbus.fi, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: Race between vmtruncate and mapped areas? Message-ID: <108250000.1052936665@baldur.austin.ibm.com> In-Reply-To: <20030514111748.57670088.akpm@digeo.com> References: <154080000.1052858685@baldur.austin.ibm.com> <3EC15C6D.1040403@kolumbus.fi><199610000.1052864784@baldur.austin.ibm.com> <20030513181018.4cbff906.akpm@digeo.com> <18240000.1052924530@baldur.austin.ibm.com> <20030514103421.197f177a.akpm@digeo.com> <82240000.1052934152@baldur.austin.ibm.com> <20030514105706.628fba15.akpm@digeo.com> <99000000.1052935556@baldur.austin.ibm.com> <20030514111748.57670088.akpm@digeo.com> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 824 Lines: 22 --On Wednesday, May 14, 2003 11:17:48 -0700 Andrew Morton wrote: > I think it might be sufficient to re-check the page against i_size > after IO completion in filemap_nopage(). It would definitely make the window a lot smaller, though it won't quite close it. To be entirely safe we'd need to recheck after we've retaken page_table_lock. Dave ====================================================================== Dave McCracken IBM Linux Base Kernel Team 1-512-838-3059 dmccr@us.ibm.com T/L 678-3059 - 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/