diff options
Diffstat (limited to 'include/linux/migrate.h')
| -rw-r--r-- | include/linux/migrate.h | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h index acadd41e0b5c..1f0ac122c3bf 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -12,14 +12,6 @@ typedef void free_folio_t(struct folio *folio, unsigned long private); struct migration_target_control; -/* - * Return values from addresss_space_operations.migratepage(): - * - negative errno on page migration failure; - * - zero on page migration success; - */ -#define MIGRATEPAGE_SUCCESS 0 -#define MIGRATEPAGE_UNMAP 1 - /** * struct movable_operations - Driver page migration * @isolate_page: @@ -35,8 +27,7 @@ struct migration_target_control; * @src page. The driver should copy the contents of the * @src page to the @dst page and set up the fields of @dst page. * Both pages are locked. - * If page migration is successful, the driver should - * return MIGRATEPAGE_SUCCESS. + * If page migration is successful, the driver should return 0. * If the driver cannot migrate the page at the moment, it can return * -EAGAIN. The VM interprets this as a temporary migration failure and * will retry it later. Any other error value is a permanent migration @@ -79,6 +70,7 @@ void migration_entry_wait_on_locked(swp_entry_t entry, spinlock_t *ptl) void folio_migrate_flags(struct folio *newfolio, struct folio *folio); int folio_migrate_mapping(struct address_space *mapping, struct folio *newfolio, struct folio *folio, int extra_count); +int set_movable_ops(const struct movable_operations *ops, enum pagetype type); #else @@ -100,6 +92,10 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping, { return -ENOSYS; } +static inline int set_movable_ops(const struct movable_operations *ops, enum pagetype type) +{ + return -ENOSYS; +} #endif /* CONFIG_MIGRATION */ |