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 X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E558C49EA6 for ; Thu, 24 Jun 2021 20:09:49 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B6E5A613A9 for ; Thu, 24 Jun 2021 20:09:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6E5A613A9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 98C0C6B0011; Thu, 24 Jun 2021 16:09:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 93BC96B005D; Thu, 24 Jun 2021 16:09:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8032F6B006C; Thu, 24 Jun 2021 16:09:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0072.hostedemail.com [216.40.44.72]) by kanga.kvack.org (Postfix) with ESMTP id 45BAE6B0011 for ; Thu, 24 Jun 2021 16:09:47 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 63B24818CDAA for ; Thu, 24 Jun 2021 20:09:47 +0000 (UTC) X-FDA: 78289708014.22.FFBB0E5 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf23.hostedemail.com (Postfix) with ESMTP id C7420A000241 for ; Thu, 24 Jun 2021 20:09:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=TslytEABRAuGLwApOpB2eV0hV6tM9WN7rQO1mwwAm9Q=; b=VnuZe33ZCG6YtDDCyvIW38X5hK SA8usqSLWqIuP4suL8eBPp7llFhujIG+ExUb1xRWBhvH0dYWCtKVwHzRo82/DRZHoQirtqpjwr2XX CTBP4XE77K4V9+MVCLVbLETVyb5RgL4D1Lep2BK2dZHFOLQViSMJcPMgJlR7gc0Modq2Ik8UUca4J qtlP02qsK08DKGd2qoMgLv0nrVpAwptaNcvQm4sBT0Dvo+fNGvhaYP/AnB6m/YbUA3GbMXGAdC2dS erKQ8K1RhmF9MZGOK9pBJ6W7CbNK70VNwa7maqEDCZieRQHvIBDH0cnqfiWCfzlDgAWZqJKKQqnV2 8ngaGEPQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1lwVf8-00Gx5E-4j; Thu, 24 Jun 2021 20:09:27 +0000 Date: Thu, 24 Jun 2021 21:09:22 +0100 From: Matthew Wilcox To: Christoph Hellwig Cc: akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 31/46] mm/writeback: Add folio_clear_dirty_for_io() Message-ID: References: <20210622121551.3398730-1-willy@infradead.org> <20210622121551.3398730-32-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Authentication-Results: imf23.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=VnuZe33Z; dmarc=none; spf=none (imf23.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org X-Rspamd-Server: rspam02 X-Stat-Signature: x6my1dsxnawxewjirog1i3y91g6zpw3b X-Rspamd-Queue-Id: C7420A000241 X-HE-Tag: 1624565386-805772 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Jun 23, 2021 at 11:43:20AM +0200, Christoph Hellwig wrote: > On Tue, Jun 22, 2021 at 01:15:36PM +0100, Matthew Wilcox (Oracle) wrote: > > Transform clear_page_dirty_for_io() into folio_clear_dirty_for_io() > > and add a compatibility wrapper. Also move the declaration to pagemap.h > > as this is page cache functionality that doesn't need to be used by the > > rest of the kernel. > > > > Increases the size of the kernel by 79 bytes. While we remove a few > > calls to compound_head(), we add a call to folio_nr_pages() to get the > > stats correct. > > ... for the eventual support of multi-page folios. Added.