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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 3E22EC433B4 for ; Fri, 30 Apr 2021 06:02:20 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 05D3B61458 for ; Fri, 30 Apr 2021 06:02:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 05D3B61458 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 0EF8A940051; Fri, 30 Apr 2021 02:02:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 076A294004E; Fri, 30 Apr 2021 02:02:15 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E0D59940051; Fri, 30 Apr 2021 02:02:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0135.hostedemail.com [216.40.44.135]) by kanga.kvack.org (Postfix) with ESMTP id BC5E694004E for ; Fri, 30 Apr 2021 02:02:15 -0400 (EDT) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 79CD6181AF5C3 for ; Fri, 30 Apr 2021 06:02:15 +0000 (UTC) X-FDA: 78087988230.22.87ADD4D Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf07.hostedemail.com (Postfix) with ESMTP id 543C4A0009CE for ; Fri, 30 Apr 2021 06:02:14 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 4A443613F8; Fri, 30 Apr 2021 06:02:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1619762534; bh=/ASLQ5Mi6F+ipN31nEE0akgO6M16SpN51Yx7LI1RBAY=; h=Date:From:To:Subject:In-Reply-To:From; b=qKJbPzfRfDxoYaHf9nP45si8HXsyGmAxq8xaJ/kEg5yyYXuV/ss9asRxUAM48xA4M BKqVz7/Zxq7R+RyodVdHCHvrRznc3ZAyHnNKiCnnJbQCN44yVqa2Co8bXFWXz+zxpe 64xoAvgHugp//wUjeOivB+5Yo8upGaeaKRUNIBFo= Date: Thu, 29 Apr 2021 23:02:13 -0700 From: Andrew Morton To: akpm@linux-foundation.org, huxiang@uniontech.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 176/178] mm/page_alloc: redundant definition variables of pfn in for loop Message-ID: <20210430060213.LF6PpC21W%akpm@linux-foundation.org> In-Reply-To: <20210429225251.02b6386d21b69255b4f6c163@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 543C4A0009CE Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=qKJbPzfR; dmarc=none; spf=pass (imf07.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org X-Stat-Signature: qbf17erq8ztdtdaimgt1bpp39y7iq739 Received-SPF: none (linux-foundation.org>: No applicable sender policy available) receiver=imf07; identity=mailfrom; envelope-from=""; helo=mail.kernel.org; client-ip=198.145.29.99 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1619762534-27453 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: huxiang Subject: mm/page_alloc: redundant definition variables of pfn in for loop This variable pfn is defined repeatedly, so it can be deleted. Link: https://lkml.kernel.org/r/20210401022802.10358-1-huxiang@uniontech.com Signed-off-by: huxiang Signed-off-by: Andrew Morton --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/page_alloc.c~mm-page_alloc-redundant-definition-variables-of-pfn-in-for-loop +++ a/mm/page_alloc.c @@ -3322,7 +3322,7 @@ void free_unref_page_list(struct list_he local_irq_save(flags); list_for_each_entry_safe(page, next, list, lru) { - unsigned long pfn = page_private(page); + pfn = page_private(page); set_page_private(page, 0); trace_mm_page_free_batched(page); _