diff options
Diffstat (limited to 'include/linux/migrate.h')
| -rw-r--r-- | include/linux/migrate.h | 24 |
1 files changed, 1 insertions, 23 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h index a2901c41466..fab9b32ace8 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -13,18 +13,9 @@ typedef void free_page_t(struct page *page, unsigned long private); * Return values from addresss_space_operations.migratepage(): * - negative errno on page migration failure; * - zero on page migration success; - * - * The balloon page migration introduces this special case where a 'distinct' - * return code is used to flag a successful page migration to unmap_and_move(). - * This approach is necessary because page migration can race against balloon - * deflation procedure, and for such case we could introduce a nasty page leak - * if a successfully migrated balloon page gets released concurrently with - * migration's unmap_and_move() wrap-up steps. */ #define MIGRATEPAGE_SUCCESS 0 -#define MIGRATEPAGE_BALLOON_SUCCESS 1 /* special ret code for balloon page - * sucessful migration case. - */ + enum migrate_reason { MR_COMPACTION, MR_MEMORY_FAILURE, @@ -45,9 +36,6 @@ extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free, extern int migrate_prep(void); extern int migrate_prep_local(void); -extern int migrate_vmas(struct mm_struct *mm, - const nodemask_t *from, const nodemask_t *to, - unsigned long flags); extern void migrate_page_copy(struct page *newpage, struct page *page); extern int migrate_huge_page_move_mapping(struct address_space *mapping, struct page *newpage, struct page *page); @@ -66,13 +54,6 @@ static inline int migrate_pages(struct list_head *l, new_page_t new, static inline int migrate_prep(void) { return -ENOSYS; } static inline int migrate_prep_local(void) { return -ENOSYS; } -static inline int migrate_vmas(struct mm_struct *mm, - const nodemask_t *from, const nodemask_t *to, - unsigned long flags) -{ - return -ENOSYS; -} - static inline void migrate_page_copy(struct page *newpage, struct page *page) {} @@ -82,9 +63,6 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping, return -ENOSYS; } -/* Possible settings for the migrate_page() method in address_operations */ -#define migrate_page NULL - #endif /* CONFIG_MIGRATION */ #ifdef CONFIG_NUMA_BALANCING |