Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef _LINUX_MIGRATE_H
2#define _LINUX_MIGRATE_H
3
4#include <linux/config.h>
5#include <linux/mm.h>
6
7#ifdef CONFIG_MIGRATION
8extern int isolate_lru_page(struct page *p, struct list_head *pagelist);
9extern int putback_lru_pages(struct list_head *l);
10extern int migrate_page(struct page *, struct page *);
11extern void migrate_page_copy(struct page *, struct page *);
12extern int migrate_page_remove_references(struct page *, struct page *, int);
13extern int migrate_pages(struct list_head *l, struct list_head *t,
14 struct list_head *moved, struct list_head *failed);
15extern int migrate_pages_to(struct list_head *pagelist,
16 struct vm_area_struct *vma, int dest);
17extern int fail_migrate_page(struct page *, struct page *);
18
19extern int migrate_prep(void);
20
21#else
22
23static inline int isolate_lru_page(struct page *p, struct list_head *list)
24 { return -ENOSYS; }
25static inline int putback_lru_pages(struct list_head *l) { return 0; }
26static inline int migrate_pages(struct list_head *l, struct list_head *t,
27 struct list_head *moved, struct list_head *failed) { return -ENOSYS; }
28
29static inline int migrate_pages_to(struct list_head *pagelist,
30 struct vm_area_struct *vma, int dest) { return 0; }
31
32static inline int migrate_prep(void) { return -ENOSYS; }
33
34/* Possible settings for the migrate_page() method in address_operations */
35#define migrate_page NULL
36#define fail_migrate_page NULL
37
38#endif /* CONFIG_MIGRATION */
39#endif /* _LINUX_MIGRATE_H */