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Tue, 25 Jan 2022 16:31:50 +0000 From: Zi Yan To: Oscar Salvador Cc: David Hildenbrand , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Michael Ellerman , Christoph Hellwig , Marek Szyprowski , Robin Murphy , linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux-foundation.org, iommu@lists.linux-foundation.org, Vlastimil Babka , Mel Gorman , Eric Ren Subject: Re: [PATCH v4 3/7] mm: page_isolation: check specified range for unmovable pages Date: Tue, 25 Jan 2022 11:31:47 -0500 X-Mailer: MailMate (1.14r5861) Message-ID: <0F470316-5BED-4A81-BFE2-57CBFC550E6E@nvidia.com> In-Reply-To: <20220125132108.GB5609@linux> References: <20220119190623.1029355-1-zi.yan@sent.com> <20220119190623.1029355-4-zi.yan@sent.com> <6AEF32AC-4E0D-41E0-8850-33B8BD955920@nvidia.com> <20220125131943.GA5609@linux> <20220125132108.GB5609@linux> Content-Type: multipart/signed; boundary="=_MailMate_02D44EC6-7A0D-429E-8C5D-30A5308D6165_="; micalg=pgp-sha512; protocol="application/pgp-signature" X-ClientProxiedBy: BL1P222CA0005.NAMP222.PROD.OUTLOOK.COM (2603:10b6:208:2c7::10) To MN2PR12MB3823.namprd12.prod.outlook.com (2603:10b6:208:168::26) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 20917e0a-a961-4871-68e8-08d9e0203022 X-MS-TrafficTypeDiagnostic: DM6PR12MB4122:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:9508; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?oyWjwqXg5DcIhgw7J8vyIKaebc5F4VWfXMy+7yDKV6Ws9mKFpdEq2yVlz/Ai?= =?us-ascii?Q?Ardrj2zoe11hxEmRjRaFtkzCFz7oto0ffEy8M52Bk/QPr0UNZCxU4sszbuaC?= =?us-ascii?Q?N8dwuQ0IvvXzBQ/Kiy7RQErGC0moOAI7/0ZtXBSUQBB/vEGrmzyiohxgbF1v?= =?us-ascii?Q?bO8S2y1tsyKG34ne732RmRW27zW4Z6vVfRIf0oDWZhl65Vjt8tQDsEdVS+J1?= =?us-ascii?Q?Szx9cbYEQlYwT58uMMOJ+pCGUkF80UUXxBl7NZsW++WNLLcTD8+jzEa8kMZY?= =?us-ascii?Q?KywXkNyIuk4d4iqlJcCJt8z59Pq/fOYqL1XM66jD9rEa21zCWizubOOrDp3V?= =?us-ascii?Q?6z9S/DU4/Nwan2WGXJJSueM2y9wJqFo8iVvx3x4C1+6qn5L6VjZBYTYNXdf7?= =?us-ascii?Q?ZdQAtdxYEAE0wbAruWNJD2vTxUoBkpp146+iDheOJajZ5xlf7PhWsQULlqt7?= =?us-ascii?Q?zafx76dmhvuktBjLPS6Ane0C+l2qux14jNOTzxmao3t8M0hjPYg5TwsoUH22?= =?us-ascii?Q?uTcgZ/wOBKjbObEworlOzJVlt3ziK1jMeJ7I+2CBtf7/Y7MoK7zl5LbBpTkR?= =?us-ascii?Q?dIYM012cJU7j4JWsgczHnFIp7JAimnwHanAudU0Rp55laBZC8I1u7x3IBPMh?= =?us-ascii?Q?AZKxNBSb0DXH/QHAQk0qyB04R0Y4ir8CWIr5GBol51gVZlLqAcCTN1vc+UOo?= =?us-ascii?Q?CJEzBs5MNpMtLfugUez43HNpGr0mr9SKJPznXTixKf5TPKr0AhhUFVi/3bbP?= =?us-ascii?Q?86HuAYDf6In02RAMhOiLUoKjg7wFTVtiRVT/ryCUAjMDbI1WiP1cUIwiNUre?= =?us-ascii?Q?9g2ImMyeYlzmXUmfYxcPNYD77iB7UxPz56CyCIY0MJ5mhSN+gsI9xYYoit7t?= =?us-ascii?Q?Iw7MMOCTMBrB+0XmD/IsqDJslCx8HkRYGB1BuOlkEGX0lScI156FWl0yILth?= =?us-ascii?Q?YddrFdN/ADWyl3F1wjhMHKYZbObrkcobxdzT2TPAENSScYp7AojN41cT3ApR?= =?us-ascii?Q?i/9IIFhLXn4QAGJuK6O3hDqDytqw8pioBFLL0svPeVs6GESz+g0GM9iEOK15?= =?us-ascii?Q?/3dFKRH99JbauwIJCDLEn96KRFkxyl4dTnWzM1mXobaJm1MbfifYygwTm9zV?= =?us-ascii?Q?FU4b6jpwcCpDoILyaJJwQ0xGtD4sLxzuA58+eY5Itpw+YZNf1SBcOsH8slKh?= =?us-ascii?Q?pC9tCTTRmzaIig+YPGqXpN1p/r/VOb5bc34pOd1U0BsQm5baQGt7Z6ZAMMpr?= =?us-ascii?Q?zj13Hh2Y6SH0LY3YJjRNwWKbBxLxYTrafXv3o9oLQO/ZoUBQ0k9l16tA67lT?= =?us-ascii?Q?WfSbvzK41KvAHnZ6ewT0d/jPQ/7gWdIh3jOJrPnXKHNvuWtquvPaoCPBXgMe?= =?us-ascii?Q?RXby2ltM4oHKBXZC+lpcKPv7WbkH0LHpnih1ziRM7i6zUNRH0yDh48YAzM2M?= =?us-ascii?Q?jYHzC4bD/pOy8INnuR0HPCDluQ8F0TsTxIsi0fMFKky1ty4Tyun1XSAMhv7h?= =?us-ascii?Q?ARP2qHmzLRD8iFi1z2WkMXZ1vMNZYVJ8sQlFQ2xwIwlUAY+DZ0TpL7/uGTAc?= =?us-ascii?Q?oBeVLVc7LWpsSrLPFKk=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 20917e0a-a961-4871-68e8-08d9e0203022 X-MS-Exchange-CrossTenant-AuthSource: MN2PR12MB3823.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Jan 2022 16:31:50.2334 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 5kzIZUhao47dehiVmy1vehWJbD6a/0j8aJYY3EJSaeIeO91AEyUKyvtQklwmHFzy X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4122 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=_MailMate_02D44EC6-7A0D-429E-8C5D-30A5308D6165_= Content-Type: text/plain On 25 Jan 2022, at 8:21, Oscar Salvador wrote: > On Tue, Jan 25, 2022 at 02:19:46PM +0100, Oscar Salvador wrote: >> I know that this has been discussed previously, and the cover-letter already >> mentions it, but I think it would be great to have some sort of information about >> the problem in the commit message as well, so people do not have to go and find >> it somewhere else. > > Sorry, the commit already points it out, but I meant to elaborate some more. You got it right about the issue. And I will add more text in the commit message and function comments to clarify the situation. Thanks for your suggestions. -- Best Regards, Yan, Zi --=_MailMate_02D44EC6-7A0D-429E-8C5D-30A5308D6165_= Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQJDBAEBCgAtFiEEh7yFAW3gwjwQ4C9anbJR82th+ooFAmHwJfMPHHppeUBudmlk aWEuY29tAAoJEJ2yUfNrYfqKolUP/Rxz3d5dkTf+vh70+ghZ7cALVcsZV3hIRKJS BgW5fbBB/Tb1frZPW9wvE/KVifOSb9N/ECgKCaCsrdL52avxTj+ZpdJUEIc+rWdK J4WHGigEo1OAK5+6C+hG4AbGjFfaD4CUnuoKb87XLCyYWT1R/GfPpbuZh5p17tOL Vc7R1GzeeFQ47y0AZOLSV8diNE9xc5fPYoKIOfWXDZS2RUK9t7tuwWooR3VxGMEa +TnAH11l8uB6VYF+50cUXpe2lkpWgNsQD3PknOAwCb16LIYtAaLIJ8YESr6OpOtH F0J7bca6QS7voEKq+Gq1P0u8vHbHXRAUl6FyfLthDvFtYYEQrvqqsMJRcJe2bchS DPzqkOrF1SUZqTF5IRBYI7YhSGRhlLnkYCv/wXE14t/s0z8HqgDd925hpcrrGw3l 9rsQ34VMAkG13Hwyzb5L21q3tcyug5NC3dA7oAYFMmBLT7Zq0T714EwrVtWrNx6n XLqnyIVvJm8hNGLHFllay10nrxvYk6GuJPngUCl8rI430iPOyLZTtktF7jpzmsL9 Ym+xZKEafUnGH/4YTRBZ61gV/m0LOHJnUozBVEf7+Qykh3SzR4+b6ax7o3lv34YC DGsC+2m2FuwMBnzphJT1zq2tFS1WxmEhTBM3e4PFe/GQ1Qm0qdqP+R8mydf9mrFV JoF8wBK4 =07de -----END PGP SIGNATURE----- --=_MailMate_02D44EC6-7A0D-429E-8C5D-30A5308D6165_=--