Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753551AbXJVVsc (ORCPT ); Mon, 22 Oct 2007 17:48:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751925AbXJVVsP (ORCPT ); Mon, 22 Oct 2007 17:48:15 -0400 Received: from waste.org ([66.93.16.53]:56371 "EHLO waste.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751809AbXJVVsN (ORCPT ); Mon, 22 Oct 2007 17:48:13 -0400 Date: Mon, 22 Oct 2007 16:47:07 -0500 From: Matt Mackall To: Jeff Garzik Cc: Alan Cox , Linus Torvalds , Geert Uytterhoeven , Jens Axboe , Linux Kernel Development , mingo@elte.hu, Linux/m68k Subject: Re: [PATCH 09/10] Change table chaining layout Message-ID: <20071022214707.GJ17536@waste.org> References: <1193076664-13652-1-git-send-email-jens.axboe@oracle.com> <1193076664-13652-10-git-send-email-jens.axboe@oracle.com> <20071022211617.31f5c63d@the-village.bc.nu> <471D145A.40904@garzik.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <471D145A.40904@garzik.org> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 763 Lines: 18 On Mon, Oct 22, 2007 at 05:21:30PM -0400, Jeff Garzik wrote: > Alan Cox wrote: > >Why can't we just make the list one item longer than the entry count and > >stick a NULL on the end of it like normal people ? > > Certainly seems safer than the current "let's run off the end of the > list if anything bad happens" setup... And I do not think allocating > n+1 scatterlist entries will have much of a negative impact. It'll mean m-1 scatterlists fit on a slab. -- Mathematics is the supreme nostalgia of our time. - 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/