From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 20 Jan 2001 14:06:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 20 Jan 2001 14:05:51 -0500 Received: from ns.caldera.de ([212.34.180.1]:60166 "EHLO ns.caldera.de") by vger.kernel.org with ESMTP id ; Sat, 20 Jan 2001 14:05:39 -0500 Date: Sat, 20 Jan 2001 20:05:15 +0100 From: Christoph Hellwig To: Marcelo Tosatti Cc: Rajagopal Ananthanarayanan , Rik van Riel , "Stephen C. Tweedie" , linux-kernel@vger.kernel.org Subject: Re: [RFC] generic IO write clustering Message-ID: <20010120200514.A26170@caldera.de> Mail-Followup-To: Marcelo Tosatti , Rajagopal Ananthanarayanan , Rik van Riel , "Stephen C. Tweedie" , linux-kernel@vger.kernel.org In-Reply-To: <20010120184506.A21943@caldera.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0i In-Reply-To: ; from marcelo@conectiva.com.br on Sat, Jan 20, 2001 at 02:00:24PM -0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 20, 2001 at 02:00:24PM -0200, Marcelo Tosatti wrote: > > True. But you have to go through ext2_get_branch (under the big kernel > > lock) - if we can do only one logical->physical block translations, > > why doing it multiple times? > > You dont. If the metadata is cached and uptodate there is no need to call > get_block(). Ups. You are right for the stock tree - I was only looking at my kio tree, where it can't be cached due to the lack of buffer-cache usage... Christoph -- Whip me. Beat me. Make me maintain AIX. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/