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