Message ID | 20210416154106.23721-10-kirill.shutemov@linux.intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=DWy+=JN=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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,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 05D92C43461 for <linux-mm@archiver.kernel.org>; Fri, 16 Apr 2021 15:41:52 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7E088613BB for <linux-mm@archiver.kernel.org>; Fri, 16 Apr 2021 15:41:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7E088613BB 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 92D76900003; Fri, 16 Apr 2021 11:41:44 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8B2928D0005; Fri, 16 Apr 2021 11:41:44 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 72CD2900003; Fri, 16 Apr 2021 11:41:44 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0217.hostedemail.com [216.40.44.217]) by kanga.kvack.org (Postfix) with ESMTP id 4BB908D0002 for <linux-mm@kvack.org>; Fri, 16 Apr 2021 11:41:44 -0400 (EDT) Received: from smtpin31.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id E8E0B485C for <linux-mm@kvack.org>; Fri, 16 Apr 2021 15:41:43 +0000 (UTC) X-FDA: 78038645286.31.0542567 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by imf24.hostedemail.com (Postfix) with ESMTP id 75959A000395 for <linux-mm@kvack.org>; Fri, 16 Apr 2021 15:41:36 +0000 (UTC) IronPort-SDR: SfEA/g6KkBYi+sffSHNlEh2NRkJcxoFSGV6808KjrEPW8S5Lwk+bD1/8ycC/J6l+9TdxHuVnV2 LzBpQiXoEyBQ== X-IronPort-AV: E=McAfee;i="6200,9189,9956"; a="259013597" X-IronPort-AV: E=Sophos;i="5.82,226,1613462400"; d="scan'208";a="259013597" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Apr 2021 08:41:43 -0700 IronPort-SDR: smzvmzhAz7siSWzlCg7OhYyupxhl2DWlKLBDXV9vxp3jd807ASXENtwiD31DJV3hL/ZKXosc7a d9bJxAknmEZA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,226,1613462400"; d="scan'208";a="533495256" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga004.jf.intel.com with ESMTP; 16 Apr 2021 08:41:37 -0700 Received: by black.fi.intel.com (Postfix, from userid 1000) id 2964030E; Fri, 16 Apr 2021 18:41:50 +0300 (EEST) From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> To: Dave Hansen <dave.hansen@linux.intel.com>, Andy Lutomirski <luto@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Sean Christopherson <seanjc@google.com>, Jim Mattson <jmattson@google.com> Cc: David Rientjes <rientjes@google.com>, "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>, "Kleen, Andi" <andi.kleen@intel.com>, "Yamahata, Isaku" <isaku.yamahata@intel.com>, Erdem Aktas <erdemaktas@google.com>, Steve Rutherford <srutherford@google.com>, Peter Gonda <pgonda@google.com>, David Hildenbrand <david@redhat.com>, x86@kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Subject: [RFCv2 09/13] shmem: Fail shmem_getpage_gfp() on poisoned pages Date: Fri, 16 Apr 2021 18:41:02 +0300 Message-Id: <20210416154106.23721-10-kirill.shutemov@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210416154106.23721-1-kirill.shutemov@linux.intel.com> References: <20210416154106.23721-1-kirill.shutemov@linux.intel.com> MIME-Version: 1.0 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 75959A000395 X-Stat-Signature: fdysmgndq9wznmnmruj4cjumnmixb9by Received-SPF: none (linux.intel.com>: No applicable sender policy available) receiver=imf24; identity=mailfrom; envelope-from="<kirill.shutemov@linux.intel.com>"; helo=mga07.intel.com; client-ip=134.134.136.100 X-HE-DKIM-Result: none/none X-HE-Tag: 1618587696-3188 Content-Transfer-Encoding: quoted-printable 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 |
TDX and guest memory unmapping
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expand
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diff --git a/mm/shmem.c b/mm/shmem.c index 7c6b6d8f6c39..d29a0c9be19c 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1832,6 +1832,13 @@ static int shmem_getpage_gfp(struct inode *inode, pgoff_t index, if (page) hindex = page->index; + + if (page && PageHWPoison(page)) { + unlock_page(page); + put_page(page); + return -EIO; + } + if (page && sgp == SGP_WRITE) mark_page_accessed(page);