alloc_migration_target
struct folio *alloc_migration_target(struct folio *src, unsigned long private);
migrate_pages(migrate_folios, alloc_migration_target, NULL,
if (migrate_pages(movable_folio_list, alloc_migration_target,
ret = migrate_pages(&pagelist, alloc_migration_target, NULL,
ret = migrate_pages(&source, alloc_migration_target, NULL,
err = migrate_pages(&pagelist, alloc_migration_target, NULL,
err = migrate_pages(pagelist, alloc_migration_target, NULL,
ret = migrate_pages(&cc->migratepages, alloc_migration_target,
dst = alloc_migration_target(src, (unsigned long)&target_nid_mtc);
return alloc_migration_target(src, (unsigned long)mtc);