Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) client-ip=2620:137:e000::3:3;
From:   "Verma, Vishal L" <vishal.l.verma@intel.com>
To:     "Williams, Dan J" <dan.j.williams@intel.com>,
        "Jiang, Dave" <dave.jiang@intel.com>,
        "osalvador@suse.de" <osalvador@suse.de>,
        "david@redhat.com" <david@redhat.com>,
        "akpm@linux-foundation.org" <akpm@linux-foundation.org>
CC:     "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
        "Huang, Ying" <ying.huang@intel.com>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "aneesh.kumar@linux.ibm.com" <aneesh.kumar@linux.ibm.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-cxl@vger.kernel.org" <linux-cxl@vger.kernel.org>,
        "Hocko, Michal" <mhocko@suse.com>,
        "nvdimm@lists.linux.dev" <nvdimm@lists.linux.dev>,
        "jmoyer@redhat.com" <jmoyer@redhat.com>,
        "Jonathan.Cameron@huawei.com" <Jonathan.Cameron@huawei.com>
Subject: Re: [PATCH v5 2/2] dax/kmem: allow kmem to add memory with
 memmap_on_memory
Thread-Topic: [PATCH v5 2/2] dax/kmem: allow kmem to add memory with
 memmap_on_memory
Thread-Index: AQHZ97pFlzDFXvvBck2PX4DBerIrvrA7swCAgBF/9QA=
Date:   Tue, 17 Oct 2023 00:31:04 +0000
Message-ID: <923d65270ad08d47adae0d82ab4b508d01e9cc00.camel@intel.com>
References: <20231005-vv-kmem_memmap-v5-0-a54d1981f0a3@intel.com>
         <20231005-vv-kmem_memmap-v5-2-a54d1981f0a3@intel.com>
         <651f27b728fef_ae7e7294b3@dwillia2-xfh.jf.intel.com.notmuch>
In-Reply-To: <651f27b728fef_ae7e7294b3@dwillia2-xfh.jf.intel.com.notmuch>
Accept-Language: en-US
Content-Language: en-US
user-agent: Evolution 3.48.4 (3.48.4-1.fc38) 
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?SU1JaXROM1BwYmVLYW40KzFVSVp5S2JqUk8vK29sSDVnL0ZVTTcxWEoyQ3Ji?=
 =?utf-8?B?Y1FYU0hzOEdvb0JFcTdYOVdkek9leFgra1JBMzdJb0pUZnFMaC9IMlBSSzEw?=
 =?utf-8?B?WG9rV2lRSzRwN1JqSTNQTGdMWDRFZmZEbGx1SUVqMkxlcEVtUFNjaC9nUk9N?=
 =?utf-8?B?cWE0bW14MFlPYTlpNlppL3pJWDFsci9YRUp3dlBnTndWeDdmbmxrMEt5dGhm?=
 =?utf-8?B?T2hqWDQ2Y1I4aEVYK0ltL1FFcmpNUFQ4akVseU1EMHkzd0Zpb3g2d2N2R2J6?=
 =?utf-8?B?Wm4xazdRUkErQkpNb2duYTRZZlF2R1Z1QkNvMjU5V3BGZTJCT3V5U0ZpKzFJ?=
 =?utf-8?B?OVJXYW9EaTJLNkpGQjdqemRSSjlnelVVUUg4UGptWWUwK01tbjcrU0cyOXBL?=
 =?utf-8?B?eWNsVFJXRTdJWUZtcXc2TUZVOXVtUU0xdENBVXV2OTFkOUpDbUNBUFVaN0dB?=
 =?utf-8?B?QWJjeWRXSXZMSEMvaGVRSWtFK2pjbWVUZXJrY3QweHpXV05ucWo5VGVlc2F3?=
 =?utf-8?B?L1FjZTB5V2lMYlc0Qjl2NElyRmhPUHN4VmhZUk5pZDdjb21kdlU5bk51NUpN?=
 =?utf-8?B?OHk4VGg4WllCMVNUMnlaRHhRL3Z3MXRMWUtDeWkyeVd3S2c2U3MzRjhKOS90?=
 =?utf-8?B?cFduMVZIYkZKKzlDd0xDSTNEVFo5NWpiY0xPaGRVeTE1djRSOFJWZ2oyQm43?=
 =?utf-8?B?bWZIbHZOUkVhcU9xUEttcFJXWVJxUHB0QmMyREYwampxWXV6ZFVQVy8rdndB?=
 =?utf-8?B?S0kxdERHb015RkZvVm5VVVl1MzlvZnlmdmVMSnZyelVlaUFHa1BteW5ra0RR?=
 =?utf-8?B?MHN2WjlYWEM5VU85clU4R1QzNkRaYkFJelFtYVBZcFlJNkJlTE9HVjRkdFpR?=
 =?utf-8?B?T3BWZVBZV0RMdThtWVFZalJZeERjOVBLMTBUbkVZWVZoTk10ZHJ3VlNqVWY0?=
 =?utf-8?B?Zm1ZTXJpVm0xQVZtL1g5ZkVQK1R1dGZnSGoxMDdqSjNHYW91VGdlQ096QTEz?=
 =?utf-8?B?QVllaGlhYXJBc1BXU3FzQkw4UytId1Rad3VmVUNYZDlieXhSNFBFZVJMQTQr?=
 =?utf-8?B?emROWGwyTkZwZkJWdlJvcE1CQ095czFEd2RSd1BkUkh3TVdQbHlhVnMwYXY5?=
 =?utf-8?B?WktzNWNYTWxqZkhFYkh3WFVXN0Vtdi9zNTlCTGtCNTVPV0Rtdy94cmFDWXo1?=
 =?utf-8?B?bDhvREhpR2dYZ3RpdzloZEw5K0RqVVdWWS8wVEdOZ1J5ei8wN3lObkpOV1N6?=
 =?utf-8?B?OXBVaFVuZHhLOVBGQkFSYjhiUmFEYzRkMktzUExReVRaRXQ4L0dFQktCU0Mz?=
 =?utf-8?B?aXYyYk1LVE95NmVtYnpaN3EzZU1sR1d5c29kazUwWFBPaXIzeFZNc21pNFVJ?=
 =?utf-8?B?RURUcmlFWlVDL0dJMkViTVFYZEduMDBpTmRXNkRvb2U3MHZBWldOWnh3MmNz?=
 =?utf-8?B?VDRGVktqM2xyU2pxL1JkdlNvZk1vTlJBQTlnRVo4dkkvT0FHYkJoSlRabWhz?=
 =?utf-8?B?ckw4ZVcwdGZnY0NZRUIyK3d6dk9jRDc4YmM3b3VqUSs0N2dobGViMTkwZVQw?=
 =?utf-8?B?QnZVUHh4MkhxRFRaYkNlNkFIM0RVV25CemlmdkNFV3RYSXB0dWN0RlpMMHlN?=
 =?utf-8?B?ZGMvZjZ0K01yYmNxOUhHeU04OTNwWE12RmUvQ3NzL0ZXVGgyaGFybTZQMW9V?=
 =?utf-8?B?bENkSng0NnNFSTlNVkt4UkVVaEJXbmtncWN3NUR0T0dUYlJkZ0NJaXh2K2pN?=
 =?utf-8?B?Y1Z0dzhrTzZzRjJGejByd3hzRWRRbnVMVVhEbUdvS3E1VlRkeUx1VDdxbW5T?=
 =?utf-8?B?WmpwejlYVjFsWFBaV0xMczE1dGVad1pHdjNldEVPLzk4Z2R5Nmk1MjdMVWh1?=
 =?utf-8?B?RkI4bzkzUlNyYUs4RHpSZEpTOEV6ZVl3RENzOXVmY1pGbkJ3QVA0Zm9nd0VR?=
 =?utf-8?B?ZFJZTzZRVktzREV5TnNYa2xkTEZ5L21SbExDZWtzUHRVLzJNalBVTEVBMzM0?=
 =?utf-8?B?bkVZMEp0UWFvdmFvVG9yMUplNjhVUVVPd2F6MmE3NDNSS0c2N2lkYUZ0ZXFD?=
 =?utf-8?B?elprYVFrNjIrREpmeERxbnpkbkJCelBTN3E3RW9PM1prdFBKMmFqVzBJdHZv?=
 =?utf-8?B?aytrbjNod1c2eGNYbnFsTldCT3Z4eHpndVNqTk1qWVRrUmNhOElYNngwRWFP?=
 =?utf-8?B?ZEE9PQ==?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <ABFF524657019B4EB088AE7B140A48EC@namprd11.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: MW4PR11MB7125.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: 0de8afa8-ac35-48f9-0f91-08dbcea858cf
X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Oct 2023 00:31:04.2490
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: tHgmBY9G1gvTa5ZEia0RNCgR19uKR+SqmWwwFyXW4dEPcSHmtxonoThUEPRyFt4EMzS+Y3Czxe7JdVQfvAzTuXtvkJvNBg7azwL5G5zsAX4=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB4615
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,
	DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable
	autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Mon, 16 Oct 2023 17:31:41 -0700 (PDT)
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