From patchwork Tue Nov 17 16:49:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Su X-Patchwork-Id: 11912871 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 37E82C63697 for ; Tue, 17 Nov 2020 16:49:32 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 90C1624654 for ; Tue, 17 Nov 2020 16:49:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="C9rNxyGL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 90C1624654 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 056DB6B005D; Tue, 17 Nov 2020 11:49:31 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 005C76B0068; Tue, 17 Nov 2020 11:49:30 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E863A6B006E; Tue, 17 Nov 2020 11:49:30 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0008.hostedemail.com [216.40.44.8]) by kanga.kvack.org (Postfix) with ESMTP id BD0126B005D for ; Tue, 17 Nov 2020 11:49:30 -0500 (EST) Received: from smtpin03.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 6722A1EE6 for ; Tue, 17 Nov 2020 16:49:30 +0000 (UTC) X-FDA: 77494496100.03.wind59_1113c2527333 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin03.hostedemail.com (Postfix) with ESMTP id 46FF928A4EB for ; Tue, 17 Nov 2020 16:49:30 +0000 (UTC) X-HE-Tag: wind59_1113c2527333 X-Filterd-Recvd-Size: 2305 Received: from m12-13.163.com (m12-13.163.com [220.181.12.13]) by imf27.hostedemail.com (Postfix) with ESMTP for ; Tue, 17 Nov 2020 16:49:26 +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=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-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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.075604, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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