From patchwork Tue Dec 22 18:27:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Su X-Patchwork-Id: 11987155 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 BE42FC433DB for ; Tue, 22 Dec 2020 18:27:43 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 427E222527 for ; Tue, 22 Dec 2020 18:27:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 427E222527 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=163.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6EC026B00A5; Tue, 22 Dec 2020 13:27:42 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 674086B00A6; Tue, 22 Dec 2020 13:27:42 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5638D6B00A7; Tue, 22 Dec 2020 13:27:42 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0059.hostedemail.com [216.40.44.59]) by kanga.kvack.org (Postfix) with ESMTP id 3C0F96B00A5 for ; Tue, 22 Dec 2020 13:27:42 -0500 (EST) Received: from smtpin25.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id A6F04363B for ; Tue, 22 Dec 2020 18:27:41 +0000 (UTC) X-FDA: 77621751522.25.beef62_4d0fb4827462 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin25.hostedemail.com (Postfix) with ESMTP id 785E51804E3A0 for ; Tue, 22 Dec 2020 18:27:41 +0000 (UTC) X-HE-Tag: beef62_4d0fb4827462 X-Filterd-Recvd-Size: 2280 Received: from m12-12.163.com (m12-12.163.com [220.181.12.12]) by imf36.hostedemail.com (Postfix) with ESMTP for ; Tue, 22 Dec 2020 18:27:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version; bh=580Ow Nj9VQTuck9gYalATYntiA58Tf9ffgntFB1gstw=; b=HOE4TajeV3EHosIXZ8/UX gTvu3dQ6R3ZWF8I3IjuFWlf8CTrtAqiCZhP7HsFltCK7I3GnFA7TO+k3wraWF0V1 a8ZaSKgJJ6jFqCUv14XqZG3hJ/bwHr3vhaPm4kef4eDxmeAg+Qel0cNIw0ryB7tD nwj2nVLKyDB9xjkywJJxJo= Received: from localhost (unknown [101.86.213.121]) by smtp8 (Coremail) with SMTP id DMCowADHMNyXOuJfSqqNIQ--.57720S2; Wed, 23 Dec 2020 02:27:35 +0800 (CST) Date: Wed, 23 Dec 2020 02:27:35 +0800 From: sh To: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: sh_def@163.com Subject: [PATCH] mm/page_reporting: use list_entry_is_head() in page_reporting_cycle() Message-ID: <20201222182735.GA1257912@ubuntu-A520I-AC> MIME-Version: 1.0 Content-Disposition: inline X-CM-TRANSID: DMCowADHMNyXOuJfSqqNIQ--.57720S2 X-Coremail-Antispam: 1Uf129KBjvdXoWruFWfJw1fXF1kWr1xuw45Jrb_yoW3Arc_u3 yI93WkWrnxtrs29r1UA3WfKFnxJw4UCr4fJr4xtF1rtryUGrs8WFZ5AwnI9rW3WrW3u343 uw1DXFy7ur17XjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUbFAp7UUUUU== X-Originating-IP: [101.86.213.121] X-CM-SenderInfo: xvkbvvri6rljoofrz/xtbBDhgDX1rbLou8CQAAsb X-Bogosity: Ham, tests=bogofilter, spamicity=0.000036, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: replace '&next->lru != list' with list_entry_is_head(). No functional change. Signed-off-by: sh Reviewed-by: David Hildenbrand --- mm/page_reporting.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_reporting.c b/mm/page_reporting.c index cd8e13d41df4..c50d93ffa252 100644 --- a/mm/page_reporting.c +++ b/mm/page_reporting.c @@ -211,7 +211,7 @@ page_reporting_cycle(struct page_reporting_dev_info *prdev, struct zone *zone, } /* Rotate any leftover pages to the head of the freelist */ - if (&next->lru != list && !list_is_first(&next->lru, list)) + if (!list_entry_is_head(next, list, lru) && !list_is_first(&next->lru, list)) list_rotate_to_front(&next->lru, list); spin_unlock_irq(&zone->lock);