1 #ifndef __LINUX_PAGEISOLATION_H
2 #define __LINUX_PAGEISOLATION_H
5 bool has_unmovable_pages(struct zone
*zone
, struct page
*page
, int count
,
6 bool skip_hwpoisoned_pages
);
7 void set_pageblock_migratetype(struct page
*page
, int migratetype
);
8 int move_freepages_block(struct zone
*zone
, struct page
*page
,
10 int move_freepages(struct zone
*zone
,
11 struct page
*start_page
, struct page
*end_page
,
15 * Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE.
16 * If specified range includes migrate types other than MOVABLE or CMA,
17 * this will fail with -EBUSY.
19 * For isolating all pages in the range finally, the caller have to
20 * free all pages in the range. test_page_isolated() can be used for
24 start_isolate_page_range(unsigned long start_pfn
, unsigned long end_pfn
,
25 unsigned migratetype
, bool skip_hwpoisoned_pages
);
28 * Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
29 * target range is [start_pfn, end_pfn)
32 undo_isolate_page_range(unsigned long start_pfn
, unsigned long end_pfn
,
33 unsigned migratetype
);
36 * Test all pages in [start_pfn, end_pfn) are isolated or not.
38 int test_pages_isolated(unsigned long start_pfn
, unsigned long end_pfn
,
39 bool skip_hwpoisoned_pages
);
42 * Internal functions. Changes pageblock's migrate type.
44 int set_migratetype_isolate(struct page
*page
, bool skip_hwpoisoned_pages
);
45 void unset_migratetype_isolate(struct page
*page
, unsigned migratetype
);
46 struct page
*alloc_migrate_target(struct page
*page
, unsigned long private,
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