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dkim=none (message not signed) header.d=none;kvack.org; dmarc=none action=none header.from=oracle.com; Received: from BY5PR10MB4196.namprd10.prod.outlook.com (2603:10b6:a03:20d::23) by BYAPR10MB3096.namprd10.prod.outlook.com (2603:10b6:a03:151::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4219.21; Thu, 10 Jun 2021 22:49:37 +0000 Received: from BY5PR10MB4196.namprd10.prod.outlook.com ([fe80::5d11:ae6d:24b6:e838]) by BY5PR10MB4196.namprd10.prod.outlook.com ([fe80::5d11:ae6d:24b6:e838%3]) with mapi id 15.20.4219.023; Thu, 10 Jun 2021 22:49:37 +0000 Subject: Re: [PATCH 4/5] mm: sparsemem: use huge PMD mapping for vmemmap pages To: Muchun Song , akpm@linux-foundation.org, osalvador@suse.de, mhocko@suse.com, song.bao.hua@hisilicon.com, david@redhat.com, chenhuang5@huawei.com, bodeddub@amazon.com, corbet@lwn.net Cc: duanxiongchun@bytedance.com, fam.zheng@bytedance.com, zhengqi.arch@bytedance.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20210609121310.62229-1-songmuchun@bytedance.com> <20210609121310.62229-5-songmuchun@bytedance.com> From: Mike Kravetz Message-ID: Date: Thu, 10 Jun 2021 15:49:35 -0700 User-Agent: Mozilla/5.0 (X11; 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Reviewed-by: Mike Kravetz -- Mike Kravetz