Received: by 2002:a05:6358:7058:b0:131:369:b2a3 with SMTP id 24csp5687701rwp; Mon, 17 Jul 2023 08:03:56 -0700 (PDT) X-Google-Smtp-Source: APBJJlERTSVJFSOGdIjbb2FV1kVNnEJUMV0niptQd1srV/ZtQ6YE0uoT5rDRcXfxMl6RFldkQ44e X-Received: by 2002:a05:6a20:394e:b0:134:a295:bfac with SMTP id r14-20020a056a20394e00b00134a295bfacmr5029847pzg.51.1689606236275; Mon, 17 Jul 2023 08:03:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1689606236; cv=none; d=google.com; s=arc-20160816; b=FmKzSxQtN9x2PUh6tKbcYV1fBzgzaoWaXVhVazQQaOPu4bwccryGvBDHw3x8aKeQSp lomn7XhqL2LZSCWM6tDaaY5Vt3CU88ZlOFKhHSR5487AmkLGCTY8S034hOE3RKhALXtK GhENYIULU3HOdZHJO2QWJ91Ra/MHB22QS0qAOVV2iP0/ku21/Eyt8yRYWX+BfI/6sT5n KaAAiCAWdcZmredXfdUCsMeWyHDIuu9n3Mu+jRykJailyX68Cz/uPu2l6091zv03a82W 2dKtqtBgkhHt+Sd1VNOGHSMuMEqbJgoV5ffr44g259KYoBm9ccGc5fF2L+wjSx09TiLJ Nw4A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=hVWockFHfDeC36ttEpU81naz2JoLerxTMWhmyxwyEmo=; fh=cZ9b6rf9pnLGvPhbNn+CrtdOy++g45MkEFjF4qIGprQ=; b=wIA3CSXQL2CToX8NYf5jFLukXzgJAspTjAe0wwAgqVHniCTA9TUXh95akSs6u2hDRc job0s7GQ5fK2rzui4dhkwXS2VVRvCMI+7/ZFyg3mTziNWmisbVSnPf3xHG/1zUlOouS3 OlPB2/UFyhzK7qpSvso6PmrqfroQ3potv2sgUKQ4adHQp+0s46+vv/gZ8IWg6gM7jUyJ gKQ3IIv2TjeaxdOMRYe5KtTJWV9+zAawVXvAgl4YlW6gxbACOcCfYUyw1CNU3f8CIleK B7qx8L06MUr4UJz5qvEps03PfR/ElH7rPUvUyNi2V1shfAuaWbLyP7Oq2vA913eAd3xN VCUA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=PLgbppij; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id d9-20020a056a0024c900b00682a8dfe64esi5283061pfv.301.2023.07.17.08.03.30; Mon, 17 Jul 2023 08:03:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=PLgbppij; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231778AbjGQOBB (ORCPT + 99 others); Mon, 17 Jul 2023 10:01:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231560AbjGQOBA (ORCPT ); Mon, 17 Jul 2023 10:01:00 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2BD4DD1 for ; Mon, 17 Jul 2023 07:00:59 -0700 (PDT) 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=hVWockFHfDeC36ttEpU81naz2JoLerxTMWhmyxwyEmo=; b=PLgbppijJtD6HI05+rhFy9beQz fMbP/erGWaD1SwJbvlnI3X5hqolwBNyt655V3llRfI52RqF2IBuFgdvTMhQJTl2DipoE9oy5UX6gj J5VGy77nDO1Mgid5ERrqgSfGtecbXVYvjfdGwLZKn+Y/sr7WqHkkoVFewXis6vli4Nk5mt0hP0Dwq ZybhjeXZrEgIRwRmfrIwMx3X6OT4JFNjTKOoiSQIDq5s2fxrn59JbYa8qEbTqtR8jRa8koYEAi1/Y 0xAXgi5pRQ06AGG9rw7fpFkfMKlw5EVk0jCtnWaR8mXUgyueG2XKB7GGqA7SPQsktMvMQ4i8c7VLc Zx6sColw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qLOmM-003yBO-6w; Mon, 17 Jul 2023 14:00:46 +0000 Date: Mon, 17 Jul 2023 15:00:46 +0100 From: Matthew Wilcox To: Peng Zhang Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, sidhartha.kumar@oracle.com, akpm@linux-foundation.org, wangkefeng.wang@huawei.com, sunnanyong@huawei.com Subject: Re: [PATCH 3/6] mm/page_io: use a folio in swap_writepage_bdev_sync() Message-ID: References: <20230717132602.2202147-1-zhangpeng362@huawei.com> <20230717132602.2202147-4-zhangpeng362@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230717132602.2202147-4-zhangpeng362@huawei.com> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 17, 2023 at 09:25:59PM +0800, Peng Zhang wrote: > From: ZhangPeng > > Saves one implicit call to compound_head(). > > Signed-off-by: ZhangPeng Reviewed-by: Matthew Wilcox (Oracle)