From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1ED90C77B7A for ; Thu, 1 Jun 2023 04:20:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230456AbjFAEUa (ORCPT ); Thu, 1 Jun 2023 00:20:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32878 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229560AbjFAEU1 (ORCPT ); Thu, 1 Jun 2023 00:20:27 -0400 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5D96101; Wed, 31 May 2023 21:20:25 -0700 (PDT) Received: by verein.lst.de (Postfix, from userid 2407) id B611767373; Thu, 1 Jun 2023 06:20:21 +0200 (CEST) Date: Thu, 1 Jun 2023 06:20:21 +0200 From: Christoph Hellwig To: Dave Chinner Cc: Johannes Thumshirn , Jens Axboe , Christoph Hellwig , Hannes Reinecke , Chaitanya Kulkarni , Damien Le Moal , Ming Lei , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, dm-devel@redhat.com, Song Liu , linux-raid@vger.kernel.org, Mike Snitzer , Matthew Wilcox , Dave Kleikamp , jfs-discussion@lists.sourceforge.net, cluster-devel@redhat.com, Bob Peterson , Andreas Gruenbacher , Mikulas Patocka , gouha7@uniontech.com Subject: Re: [PATCH v7 19/20] fs: iomap: use bio_add_folio_nofail where possible Message-ID: <20230601042021.GA21768@lst.de> References: <58fa893c24c67340a63323f09a179fefdca07f2a.1685532726.git.johannes.thumshirn@wdc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org On Thu, Jun 01, 2023 at 08:36:59AM +1000, Dave Chinner wrote: > We lose adjacent page merging with this change. This is only used for adding the first folio to a brand new bio, so there is nothing to merge with yet at this point.