1 #ifndef _LINUX_MIGRATE_H
2 #define _LINUX_MIGRATE_H
5 #include <linux/mempolicy.h>
7 typedef struct page
*new_page_t(struct page
*, unsigned long private, int **);
9 #ifdef CONFIG_MIGRATION
10 extern int putback_lru_pages(struct list_head
*l
);
11 extern int migrate_page(struct address_space
*,
12 struct page
*, struct page
*);
13 extern int migrate_pages(struct list_head
*l
, new_page_t x
, unsigned long);
15 extern int fail_migrate_page(struct address_space
*,
16 struct page
*, struct page
*);
18 extern int migrate_prep(void);
19 extern int migrate_vmas(struct mm_struct
*mm
,
20 const nodemask_t
*from
, const nodemask_t
*to
,
23 static inline int putback_lru_pages(struct list_head
*l
) { return 0; }
24 static inline int migrate_pages(struct list_head
*l
, new_page_t x
,
25 unsigned long private) { return -ENOSYS
; }
27 static inline int migrate_pages_to(struct list_head
*pagelist
,
28 struct vm_area_struct
*vma
, int dest
) { return 0; }
30 static inline int migrate_prep(void) { return -ENOSYS
; }
32 static inline int migrate_vmas(struct mm_struct
*mm
,
33 const nodemask_t
*from
, const nodemask_t
*to
,
39 /* Possible settings for the migrate_page() method in address_operations */
40 #define migrate_page NULL
41 #define fail_migrate_page NULL
43 #endif /* CONFIG_MIGRATION */
44 #endif /* _LINUX_MIGRATE_H */