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Fri, 26 Mar 2021 20:00:52 +0000 Subject: Re: [PATCH 0/8] make hugetlb put_page safe for all calling contexts To: Miaohe Lin , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Roman Gushchin , Michal Hocko , Shakeel Butt , Oscar Salvador , David Hildenbrand , Muchun Song , David Rientjes , Peter Zijlstra , Matthew Wilcox , HORIGUCHI NAOYA , "Aneesh Kumar K . V" , Waiman Long , Peter Xu , Mina Almasry , Hillf Danton , Andrew Morton References: <20210325002835.216118-1-mike.kravetz@oracle.com> <7c74ca0d-59fc-9dc2-6e4c-4357ad76649f@huawei.com> From: Mike Kravetz Message-ID: Date: Fri, 26 Mar 2021 13:00:50 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 In-Reply-To: <7c74ca0d-59fc-9dc2-6e4c-4357ad76649f@huawei.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [50.38.35.18] X-ClientProxiedBy: MW4PR04CA0360.namprd04.prod.outlook.com (2603:10b6:303:8a::35) To BY5PR10MB4196.namprd10.prod.outlook.com (2603:10b6:a03:20d::23) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.2.112] (50.38.35.18) by MW4PR04CA0360.namprd04.prod.outlook.com (2603:10b6:303:8a::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3977.24 via Frontend Transport; Fri, 26 Mar 2021 20:00:51 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: f5556b03-0897-4415-7ebc-08d8f091dc20 X-MS-TrafficTypeDiagnostic: BYAPR10MB2664: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:10000; 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identity=mailfrom; envelope-from=""; helo=aserp2120.oracle.com; client-ip=141.146.126.78 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1616788867-298640 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: On 3/25/21 6:42 PM, Miaohe Lin wrote: > Hi: > On 2021/3/25 8:28, Mike Kravetz wrote: >> This effort is the result a recent bug report [1]. In subsequent >> discussions [2], it was deemed necessary to properly fix the hugetlb > > Many thanks for the effort. I have read the discussions and it is pretty long. > Maybe it would be helpful if you give a brief summary here? > >> put_page path (free_huge_page). This RFC provides a possible way to > > trival: Not RFC here. > >> address the issue. Comments are welcome/encouraged as several attempts >> at this have been made in the past. >>> This series is based on v5.12-rc3-mmotm-2021-03-17-22-24. At a high >> level, the series provides: >> - Patches 1 & 2 from Roman Gushchin provide cma_release_nowait() > > trival: missing description of the Patches 3 ? > Thanks, I will clean this up with next version. -- Mike Kravetz