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 E3A17C6FD1D for ; Tue, 14 Mar 2023 22:40:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229946AbjCNWkb (ORCPT ); Tue, 14 Mar 2023 18:40:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229818AbjCNWk3 (ORCPT ); Tue, 14 Mar 2023 18:40:29 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3DC94EED for ; Tue, 14 Mar 2023 15:40:28 -0700 (PDT) Received: from cwcc.thunk.org (pool-173-48-120-46.bstnma.fios.verizon.net [173.48.120.46]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 32EMeME4012257 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 14 Mar 2023 18:40:23 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1678833623; bh=ryy2gHceCz7U7eBLE+KsWWRcNA3fC3y1BsyvrZqEWFg=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=NvQSTG11p1BOW9X+k8F6SBsf4DFd58M4Qd1A5zxfVgGWGDO6mpcAhgVCT6TnQzHke MhWcNhXRBSW3HW34+O/UFygQS4G3q+pjLWgnogaDDJfZlA7PaH6jKoLWRfe+DTxsys 5RS9v93hq9JX5MGxjdyhmNxz6szmnq/E6z3VjB1TenPjOcYppzn43eQHvC0NaaVIT2 6B3GOV/peFZpXtnN1uYVWnkvK86CCud0pfpUCu6aaD2TsrjVZHtLR+ZD1YxnU1BxOS 8vyMXjWk2wYav24vFBVbMbCdCcToKRzKOhDBi9BRSTYxE1oK6bMXrlFiOF8u9fcrIg zB6ukIPGR3EjA== Received: by cwcc.thunk.org (Postfix, from userid 15806) id 5093915C5830; Tue, 14 Mar 2023 18:40:22 -0400 (EDT) Date: Tue, 14 Mar 2023 18:40:22 -0400 From: "Theodore Ts'o" To: "Matthew Wilcox (Oracle)" Cc: Andreas Dilger , linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 16/31] ext4: Convert ext4_write_begin() to use a folio Message-ID: <20230314224022.GC860405@mit.edu> References: <20230126202415.1682629-1-willy@infradead.org> <20230126202415.1682629-17-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230126202415.1682629-17-willy@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Thu, Jan 26, 2023 at 08:24:00PM +0000, Matthew Wilcox (Oracle) wrote: > Remove a lot of calls to compound_head(). I'm still puzzled about how this removes a lot of calls to compound_head(). I must be missing something...