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,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=unavailable 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 99741C2D0E4 for ; Tue, 17 Nov 2020 16:49:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 51AA1221FC for ; Tue, 17 Nov 2020 16:49:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="C9rNxyGL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727734AbgKQQto (ORCPT ); Tue, 17 Nov 2020 11:49:44 -0500 Received: from m12-13.163.com ([220.181.12.13]:40163 "EHLO m12-13.163.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726181AbgKQQto (ORCPT ); Tue, 17 Nov 2020 11:49:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Message-ID:MIME-Version; bh=0kJRm r4J72jwh/DQ8J2Hn1LSz9YEVVyO0Q8Q29QpUT0=; b=C9rNxyGL3AtlGGxtIBYm1 qPBLzJBCe1vJ/ULlazMLGHol+V4y8CdNS71kp63+fMhPasNAKZwVq1Mk9tvQQ05j FHxOQweDyKIvB2mtqOxQtFfklG8Wc0Wotvhs4qHI+JpMYoktyrawdIG3g+QBUoKZ am6oZC+OPKdldhfUJnSBbw= Received: from localhost (unknown [101.86.213.141]) by smtp9 (Coremail) with SMTP id DcCowACnvXoP_7Nfk7jURA--.60410S2; Wed, 18 Nov 2020 00:49:20 +0800 (CST) Date: Wed, 18 Nov 2020 00:49:19 +0800 From: Hui Su To: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: sh_def@163.com Subject: [PATCH] mm/lru: simplify is_file_lru() and is_active_lru() Message-ID: <20201117164919.GA82821@rlk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-CM-TRANSID: DcCowACnvXoP_7Nfk7jURA--.60410S2 X-Coremail-Antispam: 1Uf129KBjvdXoWrKFWxXw4DGr48JFWfAr18Zrb_yoW3Cwc_ua y8A3WkJwsxXrnrWw40k3ZrJ3yYk3W7XF4kZF95tw4IyrnxKws8K34kCr4qqr4kWay29ryU W3W09ryfur13GjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7xRiwID3UUUUU== X-Originating-IP: [101.86.213.141] X-CM-SenderInfo: xvkbvvri6rljoofrz/xtbBDhDfX1rbLE6IsgAAsH Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org page->lru bit 0 can tell whether the page is avtive page or not. page->lru bit 1 can tell whether the page is file page or not. Signed-off-by: Hui Su --- include/linux/mmzone.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index fb3bf696c05e..294369c652d0 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -258,12 +258,12 @@ enum lru_list { static inline bool is_file_lru(enum lru_list lru) { - return (lru == LRU_INACTIVE_FILE || lru == LRU_ACTIVE_FILE); + return lru & LRU_FILE; } static inline bool is_active_lru(enum lru_list lru) { - return (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE); + return lru & LRU_ACTIVE; } #define ANON_AND_FILE 2 -- 2.29.0