1 #ifndef __LINUX_PAGEISOLATION_H
2 #define __LINUX_PAGEISOLATION_H
4 #ifdef CONFIG_MEMORY_ISOLATION
5 static inline bool has_isolate_pageblock(struct zone *zone)
7 return zone->nr_isolate_pageblock;
9 static inline bool is_migrate_isolate_page(struct page *page)
11 return get_pageblock_migratetype(page) == MIGRATE_ISOLATE;
13 static inline bool is_migrate_isolate(int migratetype)
15 return migratetype == MIGRATE_ISOLATE;
18 static inline bool has_isolate_pageblock(struct zone *zone)
22 static inline bool is_migrate_isolate_page(struct page *page)
26 static inline bool is_migrate_isolate(int migratetype)
32 bool has_unmovable_pages(struct zone *zone, struct page *page, int count,
33 bool skip_hwpoisoned_pages);
34 void set_pageblock_migratetype(struct page *page, int migratetype);
35 int move_freepages_block(struct zone *zone, struct page *page,
36 int migratetype, int *num_movable);
39 * Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE.
40 * If specified range includes migrate types other than MOVABLE or CMA,
41 * this will fail with -EBUSY.
43 * For isolating all pages in the range finally, the caller have to
44 * free all pages in the range. test_page_isolated() can be used for
48 start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
49 unsigned migratetype, bool skip_hwpoisoned_pages);
52 * Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
53 * target range is [start_pfn, end_pfn)
56 undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
57 unsigned migratetype);
60 * Test all pages in [start_pfn, end_pfn) are isolated or not.
62 int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
63 bool skip_hwpoisoned_pages);
65 struct page *alloc_migrate_target(struct page *page, unsigned long private,