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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/linux/migrate.h
1 #ifndef _LINUX_MIGRATE_H
2 #define _LINUX_MIGRATE_H
6 typedef struct page
*new_page_t(struct page
*, unsigned long private, int **);
8 #ifdef CONFIG_MIGRATION
9 extern int isolate_lru_page(struct page
*p
, struct list_head
*pagelist
);
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
,
24 static inline int isolate_lru_page(struct page
*p
, struct list_head
*list
)
26 static inline int putback_lru_pages(struct list_head
*l
) { return 0; }
27 static inline int migrate_pages(struct list_head
*l
, new_page_t x
,
28 unsigned long private) { return -ENOSYS
; }
30 static inline int migrate_pages_to(struct list_head
*pagelist
,
31 struct vm_area_struct
*vma
, int dest
) { return 0; }
33 static inline int migrate_prep(void) { return -ENOSYS
; }
35 static inline int migrate_vmas(struct mm_struct
*mm
,
36 const nodemask_t
*from
, const nodemask_t
*to
,
42 /* Possible settings for the migrate_page() method in address_operations */
43 #define migrate_page NULL
44 #define fail_migrate_page NULL
46 #endif /* CONFIG_MIGRATION */
47 #endif /* _LINUX_MIGRATE_H */