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Fri, 4 Sep 2026 14:26:06 +0800 (CST) Received: from whupemk100004.china.huawei.com (unknown [7.152.185.74]) by mail.maildlp.com (Postfix) with ESMTPS id 9A03140572; Fri, 4 Sep 2026 14:37:18 +0800 (CST) Received: from [10.173.124.160] (10.173.124.160) by whupemk100004.china.huawei.com (7.152.185.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Fri, 4 Sep 2026 14:37:16 +0800 Subject: Re: [PATCH v9 10/15] mm: Check individual hugetlb pages for poison To: "Matthew Wilcox (Oracle)" CC: Muchun Song , Oscar Salvador , David Hildenbrand , Naoya Horiguchi , Jan Kara , , Christian Brauner , Jiaqi Yan , "Gregory Price (Meta)" , Andrew Morton , Jane Chu , References: <20260805210557.1118966-1-willy@infradead.org> <20260805210557.1118966-11-willy@infradead.org> From: Miaohe Lin Message-ID: <0ca31092-bfc1-af3d-a588-bb6bb7d5d9d8@huawei.com> Date: Fri, 4 Sep 2026 14:37:16 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20260805210557.1118966-11-willy@infradead.org> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.173.124.160] X-ClientProxiedBy: kwepems100001.china.huawei.com (7.221.188.238) To whupemk100004.china.huawei.com (7.152.185.74) X-Stat-Signature: enaqj4exaus8itm1kidjbyxh3o68angu X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 3E98518000C X-Rspam-User: X-HE-Tag: 1788503842-225172 X-HE-Meta: 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 FeSXakmZ 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2026/8/6 5:05, Matthew Wilcox (Oracle) wrote: > So far, is_page_hwpoison() has returned true for the entire poisoned > hugetlb folio, but we can usually allow access to the pages which > aren't poisoned. It's slightly tricky due to not having a reference > to the folio, but the hugetlb lock can save us here. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Jane Chu > Reviewed-by: Gregory Price (Meta) > --- > include/linux/page-flags.h | 4 +++- > mm/memory-failure.c | 43 +++++++++++++++++++++++++++++++------- > 2 files changed, 39 insertions(+), 8 deletions(-) Reviewed-by: Miaohe Lin Thanks. .