3  * Memory Migration functionality - linux/mm/migrate.c
16 #include <linux/migrate.h>
50 #include <trace/events/migrate.h>
695 	 * For memory tiering mode, when migrate between slow and fast  in folio_migrate_flags()
776  * @dst: The folio to migrate the data to.
778  * @mode: How to migrate the page.
780  * Common logic to directly migrate a single LRU folio suitable for
899  * @dst: The folio to migrate to.
900  * @src: The folio to migrate from.
901  * @mode: How to migrate the folio.
921  * @dst: The folio to migrate to.
922  * @src: The folio to migrate from.
923  * @mode: How to migrate the folio.
1084 			 * cannot try to migrate this page.  in move_to_new_folio()
1168 	 * Compaction can migrate also non-LRU pages which are  in migrate_folio_done()
1265 	 * we cannot notice that anon_vma is freed while we migrate a page.  in migrate_folio_unmap()
1342 /* Migrate the folio to the newly allocated folio in dst. */
1431  * This means that when we try to migrate hugepage whose subpages are
1652 				 * When memory is low, don't bother to try to migrate  in migrate_hugetlbs()
1848 			 * we will migrate them after the rest of the  in migrate_pages_batch()
1879 				 * When memory is low, don't bother to try to migrate  in migrate_pages_batch()
1986 	/* Try to migrate in batch with MIGRATE_ASYNC mode firstly */  in migrate_pages_sync()
2007 	 * Fall back to migrate all failed folios one by one synchronously. All  in migrate_pages_sync()
2027  * migrate_pages - migrate the folios specified in a list, to the free folios
2108 		 * is counted as 1 failure already.  And, we only try to migrate  in migrate_pages()
2127 	 * Return 0 in case all split folios of fail-to-migrate large folios  in migrate_pages()
2294 		 * pages to migrate.  Since we are going to  in move_pages_and_store_status()
2308  * Migrate an array of page address onto an array of nodes and fill
2650 		 * Do not migrate file folios that are mapped in multiple  in migrate_misplaced_folio_prepare()
2662 		 * Do not migrate dirty folios as not all filesystems can move  in migrate_misplaced_folio_prepare()
2702  * Attempt to migrate a misplaced folio to the specified destination