38 lines
1 KiB
C
38 lines
1 KiB
C
|
#ifndef __LINUX_PAGEISOLATION_H
|
||
|
|
#define __LINUX_PAGEISOLATION_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE.
|
||
|
|
* If specified range includes migrate types other than MOVABLE,
|
||
|
|
* this will fail with -EBUSY.
|
||
|
|
*
|
||
|
|
* For isolating all pages in the range finally, the caller have to
|
||
|
|
* free all pages in the range. test_page_isolated() can be used for
|
||
|
|
* test it.
|
||
|
|
*/
|
||
|
|
extern int
|
||
|
|
start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
|
||
|
|
* target range is [start_pfn, end_pfn)
|
||
|
|
*/
|
||
|
|
extern int
|
||
|
|
undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* test all pages in [start_pfn, end_pfn)are isolated or not.
|
||
|
|
*/
|
||
|
|
extern int
|
||
|
|
test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Internal funcs.Changes pageblock's migrate type.
|
||
|
|
* Please use make_pagetype_isolated()/make_pagetype_movable().
|
||
|
|
*/
|
||
|
|
extern int set_migratetype_isolate(struct page *page);
|
||
|
|
extern void unset_migratetype_isolate(struct page *page);
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|