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=-5.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 81E2CC43441 for ; Fri, 9 Nov 2018 06:47:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 495F42086C for ; Fri, 9 Nov 2018 06:47:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="QBrLpFYq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 495F42086C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ah.jp.nec.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727977AbeKIQ0k (ORCPT ); Fri, 9 Nov 2018 11:26:40 -0500 Received: from mail-pl1-f177.google.com ([209.85.214.177]:33683 "EHLO mail-pl1-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727366AbeKIQ0j (ORCPT ); Fri, 9 Nov 2018 11:26:39 -0500 Received: by mail-pl1-f177.google.com with SMTP id w22-v6so509470plk.0 for ; Thu, 08 Nov 2018 22:47:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=l5JKmNzvuS6iydaU7R8RUszNW4wpAmUInCK2c9kGsbo=; b=QBrLpFYqjQqSzfJK2rEnyXBfL6T8klW/IUbhJN3W/bGV0Gs55PMBGD1XAm4vdoWuhW xf4dHw2MQxKoaq8pFc+jw7EO6rK/0YkYCShBfJ33coD4lXrLFHhgmE1Jx9XravpmDPPR YO6xbHyJ2TlyuJ92Mtb4EDzFvaPtJM8YRanNfSxFWtMOOE5noY3ktidEsJBt2l+ZSrKk RMy+Rc3+UozEdlhcIVzGzvOrGYlbYEvOVfZArTIoIBHKloWHs952T5vjavHdoAjc2wYq sjjPl1iEBJ2G94QrJQxRalQCeTANjlCRJxMqp+vXw4iOUjbtklGwoLlPtABb3y3V4MMy mcQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=l5JKmNzvuS6iydaU7R8RUszNW4wpAmUInCK2c9kGsbo=; b=Zm5V7lY/T8jqkw1M1ciFnyMPlhKJwJV7IcWYfbuTmKRBhcnuGl+dLB7FMkIVjx9GY5 lO4CiyMLxj0rLhhMgLORfiJiybtppotUqOFxERg72p/oONsy2sxZSKuxKhX0cTWlF0ma VSPSxei2ora6BY89L8tZ4DV2bZtFP49xy3fbdtI3GOwG1Pf2GY+dlQ4FslADfejVe4J/ kO9LMG3k9H+n8o62attkAJj9+OAGMT+9W17BzYiBoHSKCOMjAgveN+SlDnSpZpX/0HVS U+4y8w9N+NKOZbkgNYa0wcq86NZOK4tG1Viq2GsR1DVnw09qskb/zI+2I6AphAP32lqe 5QMw== X-Gm-Message-State: AGRZ1gIsqi5MN9MkmuLennD8XXta2FjTIrqJbdiyx60xVh8BLKxrwIGU RUj1pbrvSOpyTT4unhMQWA== X-Google-Smtp-Source: AJdET5dgd3jDkoTeItxOkwHKWaCdYuYsaDeMUfeKi/y49QAwEpmRbauWlBf6nr8MS45dyDvKJOatCw== X-Received: by 2002:a17:902:ab83:: with SMTP id f3-v6mr7455402plr.122.1541746051224; Thu, 08 Nov 2018 22:47:31 -0800 (PST) Received: from www9186uo.sakura.ne.jp (www9186uo.sakura.ne.jp. [153.121.56.200]) by smtp.gmail.com with ESMTPSA id c70-v6sm6808355pfg.97.2018.11.08.22.47.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 Nov 2018 22:47:30 -0800 (PST) From: Naoya Horiguchi To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Michal Hocko , Andrew Morton , Mike Kravetz , xishi.qiuxishi@alibaba-inc.com, Laurent Dufour Subject: [RFC][PATCH v1 01/11] mm: hwpoison: cleanup unused PageHuge() check Date: Fri, 9 Nov 2018 15:47:05 +0900 Message-Id: <1541746035-13408-2-git-send-email-n-horiguchi@ah.jp.nec.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1541746035-13408-1-git-send-email-n-horiguchi@ah.jp.nec.com> References: <1541746035-13408-1-git-send-email-n-horiguchi@ah.jp.nec.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org memory_failure() forks to memory_failure_hugetlb() for hugetlb pages, so a PageHuge() check after the fork should not be necessary. Signed-off-by: Naoya Horiguchi --- mm/memory-failure.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git v4.19-mmotm-2018-10-30-16-08/mm/memory-failure.c v4.19-mmotm-2018-10-30-16-08_patched/mm/memory-failure.c index 0cd3de3..9f09bf3 100644 --- v4.19-mmotm-2018-10-30-16-08/mm/memory-failure.c +++ v4.19-mmotm-2018-10-30-16-08_patched/mm/memory-failure.c @@ -1357,10 +1357,7 @@ int memory_failure(unsigned long pfn, int flags) * page_remove_rmap() in try_to_unmap_one(). So to determine page status * correctly, we save a copy of the page flags at this time. */ - if (PageHuge(p)) - page_flags = hpage->flags; - else - page_flags = p->flags; + page_flags = p->flags; /* * unpoison always clear PG_hwpoison inside page lock -- 2.7.0