Message ID | 20210205023210.CbSNsXPxg%akpm@linux-foundation.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=fALz=HH=kvack.org=owner-linux-mm@kernel.org> 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 3ECBBC433E0 for <linux-mm@archiver.kernel.org>; Fri, 5 Feb 2021 02:32:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id DFA9D64FB8 for <linux-mm@archiver.kernel.org>; Fri, 5 Feb 2021 02:32:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DFA9D64FB8 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 785BA6B0070; Thu, 4 Feb 2021 21:32:13 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 73AF86B0071; Thu, 4 Feb 2021 21:32:13 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6752A6B0072; Thu, 4 Feb 2021 21:32:13 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0008.hostedemail.com [216.40.44.8]) by kanga.kvack.org (Postfix) with ESMTP id 4FB9D6B0070 for <linux-mm@kvack.org>; Thu, 4 Feb 2021 21:32:13 -0500 (EST) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 12791181AEF21 for <linux-mm@kvack.org>; Fri, 5 Feb 2021 02:32:13 +0000 (UTC) X-FDA: 77782639746.18.bit51_2a15bf7275e1 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin18.hostedemail.com (Postfix) with ESMTP id D92F6100EDBF1 for <linux-mm@kvack.org>; Fri, 5 Feb 2021 02:32:12 +0000 (UTC) X-HE-Tag: bit51_2a15bf7275e1 X-Filterd-Recvd-Size: 3588 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf05.hostedemail.com (Postfix) with ESMTP for <linux-mm@kvack.org>; Fri, 5 Feb 2021 02:32:12 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 0572564FB6; Fri, 5 Feb 2021 02:32:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1612492331; bh=kbll5D4ZbhMog5kqLpZHwTVIcRhyuoEWzqh9o47MoW4=; h=Date:From:To:Subject:In-Reply-To:From; b=M04fxGupr5nVaKNJi2DFBpl0WXYUL+zd77rkTBYVVu7uAr8SiKiAHzcWZdwtm3WIg dkU2PKDn3vBVGITDBvzs+kRbLs75rqTeyWTpXUHp84AlTsSWltz4Imt4M6inX/a9Vn WyDNOutGzdqsd1JSV8J7mlef36eFohhmtLIgeVaM= Date: Thu, 04 Feb 2021 18:32:10 -0800 From: Andrew Morton <akpm@linux-foundation.org> To: akpm@linux-foundation.org, david@redhat.com, linux-mm@kvack.org, mhocko@suse.com, mike.kravetz@oracle.com, mm-commits@vger.kernel.org, osalvador@suse.de, shy828301@gmail.com, songmuchun@bytedance.com, stable@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 03/18] mm: hugetlb: fix a race between isolating and freeing page Message-ID: <20210205023210.CbSNsXPxg%akpm@linux-foundation.org> In-Reply-To: <20210204183135.e123f0d6027529f2cf500cf2@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: <linux-mm.kvack.org> |
Series |
[01/18] mm: hugetlbfs: fix cannot migrate the fallocated HugeTLB page
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expand
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--- a/mm/hugetlb.c~mm-hugetlb-fix-a-race-between-isolating-and-freeing-page +++ a/mm/hugetlb.c @@ -5594,9 +5594,9 @@ bool isolate_huge_page(struct page *page { bool ret = true; - VM_BUG_ON_PAGE(!PageHead(page), page); spin_lock(&hugetlb_lock); - if (!page_huge_active(page) || !get_page_unless_zero(page)) { + if (!PageHeadHuge(page) || !page_huge_active(page) || + !get_page_unless_zero(page)) { ret = false; goto unlock; }