Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.38 as permitted sender) client-ip=23.128.96.38;
From:   Nadav Amit <namit@vmware.com>
To:     Byungchul Park <byungchul@sk.com>
CC:     Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        linux-mm <linux-mm@kvack.org>,
        "kernel_team@skhynix.com" <kernel_team@skhynix.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        "ying.huang@intel.com" <ying.huang@intel.com>,
        "xhao@linux.alibaba.com" <xhao@linux.alibaba.com>,
        "mgorman@techsingularity.net" <mgorman@techsingularity.net>,
        "hughd@google.com" <hughd@google.com>,
        "willy@infradead.org" <willy@infradead.org>,
        "david@redhat.com" <david@redhat.com>,
        "peterz@infradead.org" <peterz@infradead.org>,
        Andy Lutomirski <luto@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        "mingo@redhat.com" <mingo@redhat.com>,
        "bp@alien8.de" <bp@alien8.de>,
        "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>
Subject: Re: [v3 2/3] mm: Defer TLB flush by keeping both src and dst folios
 at migration
Thread-Topic: [v3 2/3] mm: Defer TLB flush by keeping both src and dst folios
 at migration
Thread-Index: AQHaCwJWAIN/MoWKfkqwslHpJdh5ILBiSanQgAA0MIA=
Date:   Mon, 30 Oct 2023 15:58:44 +0000
Message-ID: <0138328C-74D5-471E-A2CC-7675CA692F42@vmware.com>
References: <20231030072540.38631-1-byungchul@sk.com>
 <20231030072540.38631-3-byungchul@sk.com>
 <63C530D3-3A1D-4BE9-8AA7-EFF5B895BE80@vmware.com>
 <20231030125129.GD81877@system.software.com>
In-Reply-To: <20231030125129.GD81877@system.software.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?ZmdYMFo2UFJTUkNwVGVxL0JwazBROG9ObDQ2Vk1ocG1ZY0RGT1FRQ1NvMVZp?=
 =?utf-8?B?cEc3eEJNaHVzRy9VMFNUSVpBY1FKQTJhVnZuMC9vTWpRQU9xTWFGdFpDSlRo?=
 =?utf-8?B?K09CckN6Tis0NXFaSHpDRk5sOGZUWmorWm5ybHhCQ2VOM2lmb3lVaGxDSlNt?=
 =?utf-8?B?UHVocmQrTVplL0d2Y1RlQ0VNS0I3NjZROEZqc2lML0lMQUorY1pSYTN2SUs0?=
 =?utf-8?B?TEJhQU8wZmtoT2JERWFYSks3aHI2eFlaY0lKanl5MExoZTBVUU15WjA3ck5Z?=
 =?utf-8?B?QVdOTk1ObklYbW9uQXUwRi9aR1RsR0FTU2hMMHNsaUh0YWZiOTU2ekpWcldG?=
 =?utf-8?B?Q1FPWGpTWENPRTgwSk1JR0x1bFNmMmJzUjl4S29VYWg4UXVQVjdKSnZkVE9W?=
 =?utf-8?B?Vi8vZjRxOXE2YWZSVkdzdEhBZ2ZEdDc3TGVwSXJLVVdEbG5yZFZIRWlqOVBC?=
 =?utf-8?B?UVhVY250Um00eTN3NUEyTjBoT2RUNW42Ty9rTVpYYUY0SkIyY2hHd1JEQTE2?=
 =?utf-8?B?OE5mcmVKeUMxdEZsSnpYQUVrTUJFR3JRYWRyREw1bWFEL1lCMUJhcE9VTzNM?=
 =?utf-8?B?bVQvbGlPWHJiTVZIWHRtanAwVTZRZy9ORGR0dnVRK21CZngrM09LZkhXa2U4?=
 =?utf-8?B?YUNsVk8zdDVmZVRsYlZIMkp3VFZ5UjFsU2tUREhwOXEzUEpIK2NWbkJyajlq?=
 =?utf-8?B?MGV6T1dJY2w4bG9Pdm4xSUxQUWhLVUkzdzZ3Zm5LdUFnMjdBVGI3R2lxY3NP?=
 =?utf-8?B?WWc4VGROazkrZkRvUmRsZFY0TUFEVTVRek8vcGZ4cHBnbk5XZjUyWmJMOTBW?=
 =?utf-8?B?Z1RJZDNsSkpIQTRFTmdYOWZLNjFuRGxxTXVoTTBsWE01a2JCcHMzTXROZTNP?=
 =?utf-8?B?Z2RrVjl1RzZ4WDU5b1NDU1F4S3NXMXEvRSs5SDlXN1BXdHI3RWE4Rm5OdWMr?=
 =?utf-8?B?Rkl5R2gybEFaUWQrNytxWHQvVFRiUFl1UUVncmpnWjdVOTh1MlptRkUxSnpK?=
 =?utf-8?B?Sm5zZTduQjJUSTU5UzJOWHFJaTQ1VGhaMjNCdmdoSklxVGl0QUxNN0RwWUV3?=
 =?utf-8?B?T2tqYmRyRHMxczhXTWhVMlBLNWtmRFo1WS9zc0dtNGJURDRVVVFiR1AxU00x?=
 =?utf-8?B?OXlLeG4yQUhrelErN3U4SnZNM2Nrd1FFTVlDajErbUVDdC82cmlKL3lPMUkr?=
 =?utf-8?B?WC9uaEh0UWp2T3V1K1cwUFc4cGtBY0l4QmNqR3NhS3BubHpUQllWUm1Qamdv?=
 =?utf-8?B?UitvekZsRXFpMlJqK0NtUGZRNUcyV1dOeFZkM3B3TXZ6OUNtcEY3TVdFdGhX?=
 =?utf-8?B?YUx3anhDd3JaOHVDYVZUQVNzeTlvdnJndFEyMXZ6K3VKZGtFQU5zY0FWL3JU?=
 =?utf-8?B?eWZnSkpOdnFQaitzWFp1STc4MGt1N3RTaHpuek1nTzBwMHBReDJQYzRhOVJl?=
 =?utf-8?B?UlFpNlRpSGxKSkpLTjlMUHQ2MkJCZ0g0bTRneEpEbXRSdk1DRG5QaTFkSGh0?=
 =?utf-8?B?MXQ5NXJkVXQrYTN2OUxPeFZzZlBQOG85VFkwaTVvSWlkUis2QnRFbGliZ0Rt?=
 =?utf-8?B?eCtjbzA4SWoxMDRtb1hRSFJ5MVkybW1YYTBvZXZvcDRyUW5oc3VmY3ZEQ2ky?=
 =?utf-8?B?bXVScGxnVThrOFZNdnpjN0d6NmNMaVMrK0h2TnJzbEFSU2ZDeWZGd1RUWkZK?=
 =?utf-8?B?Tzh4K1BqTTZ6WFk5cm1YMEVnUzY5NmR4UTJpY2NRYjdId3kxRCtUZXRQTVM1?=
 =?utf-8?B?M1JuSVhKRjRzREs5YW14eGkvUnZXR0hJaXMvZ1drUGxhUzdzOXM1RW9MOTZv?=
 =?utf-8?B?dDlZTXFWUnlqdExLTUk3Y2paNHRRWmFHRm1VRkJhV09vMDJBa2tTSmYyZjYz?=
 =?utf-8?B?SW03S2luamZwdlNoY0Y4ODVFbkZYT3hCNC80T1VoTGNJT0dBQkRwbG15NE9m?=
 =?utf-8?B?SzREL2hoMHJRM2xTTjI3eUt4cjZwOVJxTHIxOUxnaVd2R3JrVEg0VXQzYUtR?=
 =?utf-8?B?cDRaK1FIS2VCcmF3MHpZaXlEQ1AzSXJQcDF5R3hiQ0c1bHN2RGNmL3o5dWJX?=
 =?utf-8?B?Y2RhTytubzdCaWU4Y2pXalFvcFVTQ1hSOHMvbU5NMStNQXVYS0ZDTmEwcjhD?=
 =?utf-8?Q?H/+WUvf4Cut1ISu4k4muTFzqs?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <F90C1781A951F24292E3FF7A466243D9@namprd05.prod.outlook.com>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-OriginatorOrg: vmware.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: BY3PR05MB8531.namprd05.prod.outlook.com
X-MS-Exchange-CrossTenant-Network-Message-Id: aeed0348-91f3-4f71-6d3d-08dbd9611845
X-MS-Exchange-CrossTenant-originalarrivaltime: 30 Oct 2023 15:58:44.5289
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: 4/VFI21oKmW+IJfvzWb4RHFIIN0LrlI2LF7hAXYIZbweHsFNOG7XTcJSjcxqE1vY1thICeS8jHrmR7CyHCFd5w==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR05MB10316
X-Spam-Status: No, score=-1.3 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 fry.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 (fry.vger.email [0.0.0.0]); Mon, 30 Oct 2023 08:59:04 -0700 (PDT)
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