forked from mirrors/linux
7f0f24967b
With the introduction of the boolean sync parameter, the API looks a little inconsistent as offlining is still an int. Convert offlining to a bool for the sake of being tidy. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Rik van Riel <riel@redhat.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
#ifndef _LINUX_MIGRATE_H
|
|
#define _LINUX_MIGRATE_H
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/mempolicy.h>
|
|
|
|
typedef struct page *new_page_t(struct page *, unsigned long private, int **);
|
|
|
|
#ifdef CONFIG_MIGRATION
|
|
#define PAGE_MIGRATION 1
|
|
|
|
extern void putback_lru_pages(struct list_head *l);
|
|
extern int migrate_page(struct address_space *,
|
|
struct page *, struct page *);
|
|
extern int migrate_pages(struct list_head *l, new_page_t x,
|
|
unsigned long private, bool offlining,
|
|
bool sync);
|
|
extern int migrate_huge_pages(struct list_head *l, new_page_t x,
|
|
unsigned long private, bool offlining,
|
|
bool sync);
|
|
|
|
extern int fail_migrate_page(struct address_space *,
|
|
struct page *, struct page *);
|
|
|
|
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);
|
|
#else
|
|
#define PAGE_MIGRATION 0
|
|
|
|
static inline void putback_lru_pages(struct list_head *l) {}
|
|
static inline int migrate_pages(struct list_head *l, new_page_t x,
|
|
unsigned long private, bool offlining,
|
|
bool sync) { return -ENOSYS; }
|
|
static inline int migrate_huge_pages(struct list_head *l, new_page_t x,
|
|
unsigned long private, bool offlining,
|
|
bool sync) { return -ENOSYS; }
|
|
|
|
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) {}
|
|
|
|
static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
|
|
struct page *newpage, struct page *page)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
/* Possible settings for the migrate_page() method in address_operations */
|
|
#define migrate_page NULL
|
|
#define fail_migrate_page NULL
|
|
|
|
#endif /* CONFIG_MIGRATION */
|
|
#endif /* _LINUX_MIGRATE_H */
|