mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 16:40:59 +07:00
95a402c384
Instead of passing a list of new pages, pass a function to allocate a new page. This allows the correct placement of MPOL_INTERLEAVE pages during page migration. It also further simplifies the callers of migrate pages. migrate_pages() becomes similar to migrate_pages_to() so drop migrate_pages_to(). The batching of new page allocations becomes unnecessary. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Jes Sorensen <jes@trained-monkey.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
#ifndef _LINUX_MIGRATE_H
|
|
#define _LINUX_MIGRATE_H
|
|
|
|
#include <linux/mm.h>
|
|
|
|
typedef struct page *new_page_t(struct page *, unsigned long private);
|
|
|
|
#ifdef CONFIG_MIGRATION
|
|
extern int isolate_lru_page(struct page *p, struct list_head *pagelist);
|
|
extern int 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);
|
|
|
|
extern int fail_migrate_page(struct address_space *,
|
|
struct page *, struct page *);
|
|
|
|
extern int migrate_prep(void);
|
|
|
|
#else
|
|
|
|
static inline int isolate_lru_page(struct page *p, struct list_head *list)
|
|
{ return -ENOSYS; }
|
|
static inline int putback_lru_pages(struct list_head *l) { return 0; }
|
|
static inline int migrate_pages(struct list_head *l, new_page_t x,
|
|
unsigned long private) { return -ENOSYS; }
|
|
|
|
static inline int migrate_pages_to(struct list_head *pagelist,
|
|
struct vm_area_struct *vma, int dest) { return 0; }
|
|
|
|
static inline int migrate_prep(void) { 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 */
|