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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 88BC4EB64DC for ; Mon, 17 Jul 2023 14:02:21 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0A0BC8D0001; Mon, 17 Jul 2023 10:02:21 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 050FD6B0074; Mon, 17 Jul 2023 10:02:21 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E828E8D0001; Mon, 17 Jul 2023 10:02:20 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id DB7266B0072 for ; Mon, 17 Jul 2023 10:02:20 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 7F24C403A6 for ; Mon, 17 Jul 2023 14:02:19 +0000 (UTC) X-FDA: 81021268398.01.6BC503F Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf14.hostedemail.com (Postfix) with ESMTP id 0079F100110 for ; Mon, 17 Jul 2023 14:00:51 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=PLgbppij; dmarc=none; spf=none (imf14.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1689602454; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=hVWockFHfDeC36ttEpU81naz2JoLerxTMWhmyxwyEmo=; b=GOcDlLTEyHSYEgX6SDR3VMAop3yjjST+xi+x52VP5NU4A+70xHiTxYKuw0PJpFd8e8c1Nr Ggnh2NQg7lNOzoAK75DJQSeOdhyVaAuMXxd4ei5u9J/CdbTcLEsWLONUcsBDcatigVMzA6 V/IKpdS0xeZLoDyFjM/mq9mU/VEUWro= ARC-Authentication-Results: i=1; imf14.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=PLgbppij; dmarc=none; spf=none (imf14.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1689602454; a=rsa-sha256; cv=none; b=5sxv3UNK2L59AJT3S+J2kQtMYhGDCEfkb1Xj4AgroKEgALnCkZ6RxGrhtNA+jVoIoLOAWK S3qe58xud7Ro2Kvkbm9w8cE5gFbe7hXf3yQGt2P9m8iAk6sw5FOqZXGFy3BhBFlaNErCci zcLOjstCquLHYpui8ouQMdagRzs9/is= 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-Rspamd-Queue-Id: 0079F100110 X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: oz57cfcmixkxaccq56kdpg5kxoo4ur56 X-HE-Tag: 1689602451-832941 X-HE-Meta: U2FsdGVkX19rTL9GUbCm93lq8YVeoeWAkFUvyVaBZQuPvXeKGn6ip7WXfvStmPcu1+NJztZcg8k4qwUmrg88CB7HOM/oKgWMiLT0vsZhKl4TVWjKECTcCp6lCistaUzydQb7oCO2drdhNAKcGbZgwB9Hol8dMdjlzBOa+k0hmANp0eMtLj3k/8w5AcKi7oka7TySLWCqRQYI7vl/1jRyTvBESjk47avREnRy+XZ8mNzxyqgDQvk7y/mqoAYMN6m4Oq/NXnxpWuzwPgrdCdU0A4XwLVOiBoFIRMTHmOKVeivPDegZtBqK5GT9lq1HKq5455eQ4KY+Nor+n5YHcmGzieeDXRkMwkd/gee+fx4q9VNexnq8gWfarvEsy6cQRYKiAu1/6XNZLapxXKA3Hflh+zFpNHhPZrIcVhrMRVKZgkuUEjjEgCZ1Awx9qhY83VYSFOB3ZfrDJCd6+uNZS3UWlWHk9JfeKABBSB9/pGybkaFnjLn523iBt6UG/lpIDxNkp+cUa0KtCXipT6bJkGKgJonyIPrS9pAu6+mWc1pkB4usJcSyvm09zjWgQWoJGMHQy4i0VYtetTciNJQ+U0vX/BOZcZf4qa7IUWDc60ZdM2llG0GcD4vz5M2dCiCzKt9ui3K+M6Kq1qwIW9+asgX0r/QZyBZHaqxASsRLWuOCAJo0k+b8i9vI/gH64O4RfxP7fKW40vFuzLpZOFiRteI6tikZxU3eTAUqllUV8/VFOKPM7Wot647XyTN3cctyG51vonIAxq+AunTotEsR5rUctK9MYvq/KzsTovXhmlV9O6MShayYRweIJkePckDjbzzjwLAkSHImwFcZVHR/Jze8w2CaZCoNrScVLtKN+ZellR+hFjupgN95AoM0YpmwlKzQp5N3bP1MUfuqx+ic+IkMpvBtuF0PI5aIuFye4yQoYYNTKOD+K1WV2wTV8/ET1kQPBpblfYQCHzuW5i/0Ook 1XHFL+5Y GsJJoNwTbxOQ0pLEV3t5y+YmbMPBqLb8ZU2j0uGd1v5vQRjUh7tTETJ+5yh4KVaE3fnxFnaMOrmpe6FC5fhPUdzjCnA0P33mdLfas63NEqj4IfFD7g5hnLVNNxtUGQ5rMJZrDWeskrw+APrDECEXiy9+/3YiEjaEdjGLwDZheQn4yvpx1AUeN2tz2mcM23rmBaTfzz1YFmyRClKRePbNLrurXZxQQKqFQ4v5ZRvp741aQOKnKLqHiRVblydXEd3gsyobNnqErA88IJY1yWT28Xm+VI1iOhvfMciJ0 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 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)