From patchwork Mon Jan 20 03:04:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yang X-Patchwork-Id: 11340933 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C852F921 for ; Mon, 20 Jan 2020 03:04:30 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AC9B1206D7 for ; Mon, 20 Jan 2020 03:04:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AC9B1206D7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4F41A6B059D; Sun, 19 Jan 2020 22:04:28 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 476A16B059E; Sun, 19 Jan 2020 22:04:28 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1E8046B059F; Sun, 19 Jan 2020 22:04:28 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0067.hostedemail.com [216.40.44.67]) by kanga.kvack.org (Postfix) with ESMTP id EAD906B059D for ; Sun, 19 Jan 2020 22:04:27 -0500 (EST) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id 85C3E180AD811 for ; Mon, 20 Jan 2020 03:04:27 +0000 (UTC) X-FDA: 76396519374.18.train93_43f571671bf48 X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,richardw.yang@linux.intel.com,:akpm@linux-foundation.org:richardw.yang@linux.intel.com:linux-kernel@vger.kernel.org::rientjes@google.com,RULES_HIT:30054,0,RBL:192.55.52.93:@linux.intel.com:.lbl8.mailshell.net-62.18.0.100 64.95.201.95,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:25,LUA_SUMMARY:none X-HE-Tag: train93_43f571671bf48 X-Filterd-Recvd-Size: 2136 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Mon, 20 Jan 2020 03:04:26 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 19 Jan 2020 19:04:26 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,340,1574150400"; d="scan'208";a="306802502" Received: from richard.sh.intel.com (HELO localhost) ([10.239.159.54]) by orsmga001.jf.intel.com with ESMTP; 19 Jan 2020 19:04:24 -0800 From: Wei Yang To: akpm@linux-foundation.org, richardw.yang@linux.intel.com Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, rientjes@google.com Subject: [Patch v2 2/4] mm/page_alloc.c: bad_[reason|flags] is not necessary when PageHWPoison Date: Mon, 20 Jan 2020 11:04:13 +0800 Message-Id: <20200120030415.15925-3-richardw.yang@linux.intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200120030415.15925-1-richardw.yang@linux.intel.com> References: <20200120030415.15925-1-richardw.yang@linux.intel.com> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000502, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Since function returns directly, bad_[reason|flags] is not used any where. This is a following cleanup for commit e570f56cccd21 ("mm: check_new_page_bad() directly returns in __PG_HWPOISON case") Signed-off-by: Wei Yang Acked-by: David Rientjes Acked-by: Michal Hocko Reviewed-by: David Hildenbrand --- mm/page_alloc.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 0cf6218aaba7..a43b9d2482f2 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2051,8 +2051,6 @@ static void check_new_page_bad(struct page *page) if (unlikely(page_ref_count(page) != 0)) bad_reason = "nonzero _refcount"; if (unlikely(page->flags & __PG_HWPOISON)) { - bad_reason = "HWPoisoned (hardware-corrupted)"; - bad_flags = __PG_HWPOISON; /* Don't complain about hwpoisoned pages */ page_mapcount_reset(page); /* remove PageBuddy */ return;