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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 26144C43331 for ; Thu, 2 Apr 2020 04:09:53 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id DD5C82074D for ; Thu, 2 Apr 2020 04:09:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="iSqc5k49" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DD5C82074D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8AB5B8E0074; Thu, 2 Apr 2020 00:09:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8342D8E000D; Thu, 2 Apr 2020 00:09:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 723C18E0074; Thu, 2 Apr 2020 00:09:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0125.hostedemail.com [216.40.44.125]) by kanga.kvack.org (Postfix) with ESMTP id 51DEE8E000D for ; Thu, 2 Apr 2020 00:09:52 -0400 (EDT) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 203D9180AD807 for ; Thu, 2 Apr 2020 04:09:52 +0000 (UTC) X-FDA: 76661586624.19.ray96_561fa591e0c2c X-HE-Tag: ray96_561fa591e0c2c X-Filterd-Recvd-Size: 2287 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Thu, 2 Apr 2020 04:09:51 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CDE40208E4; Thu, 2 Apr 2020 04:09:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585800591; bh=5VSdAlMUK5jUCGypEPOOHVRCXrAtIiu1vyJlXB6DL4w=; h=Date:From:To:Subject:In-Reply-To:From; b=iSqc5k49FnfCDq+piQu/0RJrm7+uTJfbNF4STMhgGWy9Q6gtMqbEgMEsGvJ3U9+R4 DSjWp1Gk+mHIMN81uLK/jhvm2sWxlq9H++mNa9q+2UiHls/ft3wHFPBDwwDRsoNsqf VPHeEcq7ffoCIPkgaBgkSazO5H/67Lmd1wkkzFC8= Date: Wed, 01 Apr 2020 21:09:50 -0700 From: Andrew Morton To: akpm@linux-foundation.org, chenqiwu@xiaomi.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, willy@infradead.org Subject: [patch 116/155] mm/page_alloc.c: use free_area_empty() instead of open-coding Message-ID: <20200402040950.yLnkih1dZ%akpm@linux-foundation.org> In-Reply-To: <20200401210155.09e3b9742e1c6e732f5a7250@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: chenqiwu Subject: mm/page_alloc.c: use free_area_empty() instead of open-coding Use free_area_empty() API to replace list_empty() for better code readability. Link: http://lkml.kernel.org/r/1583674354-7713-1-git-send-email-qiwuchen55@gmail.com Signed-off-by: chenqiwu Reviewed-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton --- mm/page_alloc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/page_alloc.c~mm-page_alloc-use-free_area_empty-instead-of-open-coding +++ a/mm/page_alloc.c @@ -3460,8 +3460,7 @@ bool __zone_watermark_ok(struct zone *z, return true; } #endif - if (alloc_harder && - !list_empty(&area->free_list[MIGRATE_HIGHATOMIC])) + if (alloc_harder && !free_area_empty(area, MIGRATE_HIGHATOMIC)) return true; } return false; _