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 4CF41C43331 for ; Thu, 2 Apr 2020 04:10:48 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 05FB02074D for ; Thu, 2 Apr 2020 04:10:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="dSP/Cd9M" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 05FB02074D 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 A308D8E0085; Thu, 2 Apr 2020 00:10:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 9E27D8E000D; Thu, 2 Apr 2020 00:10:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 91E4D8E0085; Thu, 2 Apr 2020 00:10:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0096.hostedemail.com [216.40.44.96]) by kanga.kvack.org (Postfix) with ESMTP id 77A4E8E000D for ; Thu, 2 Apr 2020 00:10:47 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 4B9EC181AC9CC for ; Thu, 2 Apr 2020 04:10:47 +0000 (UTC) X-FDA: 76661588934.04.eye20_5e28f91192612 X-HE-Tag: eye20_5e28f91192612 X-Filterd-Recvd-Size: 2435 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf26.hostedemail.com (Postfix) with ESMTP for ; Thu, 2 Apr 2020 04:10:46 +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 EE91320BED; Thu, 2 Apr 2020 04:10:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585800646; bh=rIq0udj5Z1Cif6qPh8wxOg2hDzsd6KJOqaVgt7oPNjk=; h=Date:From:To:Subject:In-Reply-To:From; b=dSP/Cd9MBdi7SAjNASe4KFSGgUyLM4acjRLYu8u619iNOcGxuLTSY/8+OIRDH3Gg3 KKM/Odb66ZkTo7lmuRQYp8xkG190KXVn5idrC85grFEL51PX88XWQAV4LYxyRcXtiE AtqsGY2UYB8n18sEwzOoOdgWJyA7NBlZgZsZ3LCo= Date: Wed, 01 Apr 2020 21:10:45 -0700 From: Andrew Morton To: akpm@linux-foundation.org, linux-mm@kvack.org, mateusznosek0@gmail.com, mgorman@techsingularity.net, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, vbabka@suse.cz Subject: [patch 133/155] mm/compaction.c: clean code by removing unnecessary assignment Message-ID: <20200402041045.NWQxIBY6p%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: Mateusz Nosek Subject: mm/compaction.c: clean code by removing unnecessary assignment Previously 0 was assigned to variable 'last_migrated_pfn'. But the variable is not read after that, so the assignment can be removed. Link: http://lkml.kernel.org/r/20200318174509.15021-1-mateusznosek0@gmail.com Signed-off-by: Mateusz Nosek Reviewed-by: Andrew Morton Acked-by: Vlastimil Babka Cc: Mel Gorman Signed-off-by: Andrew Morton --- mm/compaction.c | 1 - 1 file changed, 1 deletion(-) --- a/mm/compaction.c~mm-compactionc-clean-code-by-removing-unnecessary-assignment +++ a/mm/compaction.c @@ -2182,7 +2182,6 @@ compact_zone(struct compact_control *cc, ret = COMPACT_CONTENDED; putback_movable_pages(&cc->migratepages); cc->nr_migratepages = 0; - last_migrated_pfn = 0; goto out; case ISOLATE_NONE: if (update_cached) { _