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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT 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 763A7C55178 for ; Thu, 29 Oct 2020 10:46:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B910206FA for ; Thu, 29 Oct 2020 10:46:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727159AbgJ2Kq4 (ORCPT ); Thu, 29 Oct 2020 06:46:56 -0400 Received: from out30-57.freemail.mail.aliyun.com ([115.124.30.57]:41588 "EHLO out30-57.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725956AbgJ2Kpe (ORCPT ); Thu, 29 Oct 2020 06:45:34 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R121e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04394;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=21;SR=0;TI=SMTPD_---0UDXwDyN_1603968328; Received: from aliy80.localdomain(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0UDXwDyN_1603968328) by smtp.aliyun-inc.com(127.0.0.1); Thu, 29 Oct 2020 18:45:30 +0800 From: Alex Shi To: akpm@linux-foundation.org, mgorman@techsingularity.net, tj@kernel.org, hughd@google.com, khlebnikov@yandex-team.ru, daniel.m.jordan@oracle.com, willy@infradead.org, hannes@cmpxchg.org, lkp@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, shakeelb@google.com, iamjoonsoo.kim@lge.com, richard.weiyang@gmail.com, kirill@shutemov.name, alexander.duyck@gmail.com, rong.a.chen@intel.com, mhocko@suse.com, vdavydov.dev@gmail.com, shy828301@gmail.com Subject: [PATCH v20 04/20] mm/thp: use head for head page in lru_add_page_tail Date: Thu, 29 Oct 2020 18:44:49 +0800 Message-Id: <1603968305-8026-5-git-send-email-alex.shi@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1603968305-8026-1-git-send-email-alex.shi@linux.alibaba.com> References: <1603968305-8026-1-git-send-email-alex.shi@linux.alibaba.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since the first parameter is only used by head page, it's better to make it explicit. Signed-off-by: Alex Shi Reviewed-by: Kirill A. Shutemov Acked-by: Hugh Dickins Cc: Andrew Morton Cc: Johannes Weiner Cc: Matthew Wilcox Cc: Hugh Dickins Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org --- mm/huge_memory.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 038db815ebba..93c0b73eb8c6 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2346,19 +2346,19 @@ static void remap_page(struct page *page, unsigned int nr) } } -static void lru_add_page_tail(struct page *page, struct page *page_tail, +static void lru_add_page_tail(struct page *head, struct page *page_tail, struct lruvec *lruvec, struct list_head *list) { - VM_BUG_ON_PAGE(!PageHead(page), page); - VM_BUG_ON_PAGE(PageCompound(page_tail), page); - VM_BUG_ON_PAGE(PageLRU(page_tail), page); + VM_BUG_ON_PAGE(!PageHead(head), head); + VM_BUG_ON_PAGE(PageCompound(page_tail), head); + VM_BUG_ON_PAGE(PageLRU(page_tail), head); lockdep_assert_held(&lruvec_pgdat(lruvec)->lru_lock); if (!list) SetPageLRU(page_tail); - if (likely(PageLRU(page))) - list_add_tail(&page_tail->lru, &page->lru); + if (likely(PageLRU(head))) + list_add_tail(&page_tail->lru, &head->lru); else if (list) { /* page reclaim is reclaiming a huge page */ get_page(page_tail); -- 1.8.3.1