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Howlett" , "Mike Rapoport" , "Suren Baghdasaryan" , "Michal Hocko" , "Mathieu Desnoyers" , "Brendan Jackman" , "Johannes Weiner" , , , To: "Ye Liu" , "Muchun Song" , "Oscar Salvador" , "Andrew Morton" , "David Hildenbrand" , "Steven Rostedt" , "Masami Hiramatsu" , "Vlastimil Babka" From: "Zi Yan" X-Mailer: aerc 0.21.0 References: <20260630015331.147174-1-ye.liu@linux.dev> <20260630015331.147174-4-ye.liu@linux.dev> In-Reply-To: <20260630015331.147174-4-ye.liu@linux.dev> X-ClientProxiedBy: MN2PR18CA0008.namprd18.prod.outlook.com (2603:10b6:208:23c::13) To IA0PR12MB8374.namprd12.prod.outlook.com (2603:10b6:208:40e::7) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: IA0PR12MB8374:EE_|LV5PR12MB9802:EE_ X-MS-Office365-Filtering-Correlation-Id: ac9630f3-a5b1-4767-fa18-08ded64b75f5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: 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This makes the > intent explicit and leverages compiler type checking. The affected > subsystems are: > > - page_owner: __folio_set_owner_migrate_reason(), > folio_set_owner_migrate_reason() > - migrate: migrate_pages(), migrate_pages_sync(), > migrate_pages_batch(), migrate_folios_move(), > migrate_hugetlbs(), unmap_and_move_huge_page() > - hugetlb: move_hugetlb_state(), htlb_allow_alloc_fallback() > - trace: mm_migrate_pages and mm_migrate_pages_start events > > The 'short last_migrate_reason' struct field and internal helper > parameter in page_owner are intentionally left as 'short' since they > store per-page metadata where size matters. > > No functional change. > > Signed-off-by: Ye Liu > --- > include/linux/hugetlb.h | 9 +++++---- > include/linux/migrate.h | 6 ++++-- > include/linux/page_owner.h | 7 ++++--- > include/trace/events/migrate.h | 8 ++++---- > mm/hugetlb.c | 3 ++- > mm/migrate.c | 12 ++++++------ > mm/page_owner.c | 2 +- > 7 files changed, 26 insertions(+), 21 deletions(-) > LGTM. Thanks. Reviewed-by: Zi Yan --=20 Best Regards, Yan, Zi