From nobody Tue Sep 9 01:01:46 2025 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 D5500C0015E for ; Fri, 21 Jul 2023 03:45:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229476AbjGUDpb (ORCPT ); Thu, 20 Jul 2023 23:45:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58610 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230072AbjGUDpP (ORCPT ); Thu, 20 Jul 2023 23:45:15 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12BBA1BFC for ; Thu, 20 Jul 2023 20:45:15 -0700 (PDT) Received: from kwepemm600020.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4R6b5l2VVVz18M5x; Fri, 21 Jul 2023 11:44:27 +0800 (CST) Received: from localhost.localdomain (10.175.112.125) by kwepemm600020.china.huawei.com (7.193.23.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Fri, 21 Jul 2023 11:45:12 +0800 From: Peng Zhang To: , , CC: , , , , , ZhangPeng Subject: [PATCH v4 07/10] mm/page_io: use a folio in swap_writepage_bdev_sync() Date: Fri, 21 Jul 2023 11:44:48 +0800 Message-ID: <20230721034451.16412-8-zhangpeng362@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230721034451.16412-1-zhangpeng362@huawei.com> References: <20230721034451.16412-1-zhangpeng362@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems704-chm.china.huawei.com (10.3.19.181) To kwepemm600020.china.huawei.com (7.193.23.147) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: ZhangPeng Saves one implicit call to compound_head(). Signed-off-by: ZhangPeng Reviewed-by: Matthew Wilcox (Oracle) --- mm/page_io.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/mm/page_io.c b/mm/page_io.c index 7e7a9f67b9ad..9df2a85e31b1 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -331,6 +331,7 @@ static void swap_writepage_bdev_sync(struct page *page, { struct bio_vec bv; struct bio bio; + struct folio *folio =3D page_folio(page); =20 bio_init(&bio, sis->bdev, &bv, 1, REQ_OP_WRITE | REQ_SWAP | wbc_to_write_flags(wbc)); @@ -340,8 +341,8 @@ static void swap_writepage_bdev_sync(struct page *page, bio_associate_blkg_from_page(&bio, page); count_swpout_vm_event(page); =20 - set_page_writeback(page); - unlock_page(page); + folio_start_writeback(folio); + folio_unlock(folio); =20 submit_bio_wait(&bio); __end_swap_bio_write(&bio); --=20 2.25.1