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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?PWaFHkmRRKjQnHZNE/NxJPIPEa/ygEhePGdspVIO3cRHgyVapxw4Rpc1PExA?= =?us-ascii?Q?nV95xSY7K6Wa2LVe3fqwOfvzl4r7HEsNQpMKHyOenvK1Y9PGVRnTVXO9slma?= =?us-ascii?Q?Pf2PpX48UoxUWwAe/UGg/+WWllSvtDUJFA7wx2CyqDXWazZC6IVmGwwaGu5w?= =?us-ascii?Q?PO9KH7Qm8i7AGSNaSgmD9q/BuaIoGYMFxMfUjjofCTd6lQgLSrXRpBl07O29?= =?us-ascii?Q?nndwqI+EM3p1UvhzJxsqdIUM1gy7CGnqhOgxaznkrOB/mYpb9gXue+WHdA5z?= =?us-ascii?Q?SJlTWBP//vNAOjghKIZtlH4RMX7THQkUZ8LQucWIIhDC1HI/Kw5QEuzObsWw?= =?us-ascii?Q?2qAIHcArRhKO2yYuy7kYXsDYSjsOvZ5ue0OqbZQ8G4sgr8Q+aup0yjGbS9H6?= =?us-ascii?Q?jLXijnlFwIRRbjbwwclO91LfQi03ykUtosQ3XvfVNbuRabE5u0Gbs6FHQGbc?= =?us-ascii?Q?w6hNW82YgLCfLqYM9teDL8iiAYiaNaxlcvXBi9O4ra7lle5JNtwaJbWbxwlk?= =?us-ascii?Q?lOXHMco5dVlDOXJAX8qu/1JZFlyOrf6Km/5B0ib4DM2qZOCXE39j1GT1xvJD?= =?us-ascii?Q?Dgt1c4qkOD4FP8Qv+nY0ytqsuAygAx+VlGQ0x3YYXbpjTfzkttHFgKVN9e3d?= =?us-ascii?Q?VPy2H0e60lffZvvqYlkEHPnKaA2V0LLMz6w6t2orFL270xWL1ga/+kaUKT3u?= =?us-ascii?Q?MrNV0LXCPD/Un53dvBSciDkx/vx+aqhvv71BBOUJ6IVC7BzFvAt4AKPIdIZr?= =?us-ascii?Q?Xjrc5FdhmKw6U2GVDkYkMhQIcL/gkgvhGcLc/022268Y2e1ZUOCjE1cXbcn8?= =?us-ascii?Q?Fr6/JAQIYblXxzOnadCOJAeGt7FMv3yEdKRV6zfaQxa5qDTqmtmsPAdipKN4?= =?us-ascii?Q?BJC0OdIjOMYnf1bjn2xj76uhsBZJtVv1E2YMFdae8wBnKAzI+Uq+g4Glm9fn?= =?us-ascii?Q?h5DMdr/13yLjzIn575JYDPPMz0IhGZVZXW7vRVRPX+eulinC8Ss9l2Sn8MFX?= =?us-ascii?Q?Owyz/X/05Pj/Vf1eH4GzldRxaQ00v+RqpBdY6daudgaMdrsEA664qOKeS1PG?= =?us-ascii?Q?KEVKxGsQuA/yxgLWVclcmsuBTa1TnTsd+epV8wBj2Egb4ZfmR2b/Rbccj82B?= =?us-ascii?Q?JUgVO1RAsUw/iwMdeJl05pXWtbdH1IyNqvgBsn4nI84dFvYczumDAEccNKLh?= =?us-ascii?Q?eOpqC0x0Nzb4R9Rihwiosc+cK+CtfnNVi6PppNYgoRd9BZX4mGRwznHAvMet?= =?us-ascii?Q?u4iQSaKveP8VrUmXTm9fRIa1R16Y7nRS9IiaMgKAQBsEAEOXnULsLGWTJMzi?= =?us-ascii?Q?M6Lx0CXBk5O/bYI+Qx1GMmz/r1vX+hRehzga6Ae4HdfTrpyknfApIPjVtk1R?= =?us-ascii?Q?YiyR4iW1UQq5emivdu2olyq0ZkKRlEUSOGw2u2QaqDNovtWIOGOsgryFSFm+?= =?us-ascii?Q?vaIhXvUP52yCrmytQFSzVT5xsBfLXpXCjnODF7rQAVopbBkR1nKrzvdkmWI3?= =?us-ascii?Q?V+xDm2qNAfPpqId2OEbuDl91ImtBG4DV0eSZq9QurASVA1n1g1ZCNvlOoTK5?= =?us-ascii?Q?vItUFQLcwHZ8JRAJ0hCdmPv6NXkB2CkHl9mzw3YW?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: bffebe9d-b4d5-4ad5-4686-08de12f3bfcd X-MS-Exchange-CrossTenant-AuthSource: MN2PR12MB3613.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Oct 2025 11:52:04.0183 (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: o7GsEMmAP5JWohndPcyuy+qTltojvken1uAmtkzeIxV8zmA1CsZmR22wfU3YKKaV X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB8858 On Fri, Oct 24, 2025 at 05:45:45PM +0800, Shuai Xue wrote: > Rather than having MM maintain metadata about these PFNs, have you > considered adding an operation callback similar to > dev_pagemap_ops->memory_failure? I think someone could come with such a proposal on top of this, it would not be hard to add some ops to pfn_address_space and have the code call them instead of using the address_space. This version just needs to link into the existing VMA machinery (ie collect_procs_pfn), it doesn't make alot of sense to push that work into drivers. Jason