Commit | Line | Data |
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a5d76b54 KH |
1 | #ifndef __LINUX_PAGEISOLATION_H |
2 | #define __LINUX_PAGEISOLATION_H | |
3 | ||
194159fb | 4 | #ifdef CONFIG_MEMORY_ISOLATION |
ad53f92e JK |
5 | static inline bool has_isolate_pageblock(struct zone *zone) |
6 | { | |
7 | return zone->nr_isolate_pageblock; | |
8 | } | |
194159fb MK |
9 | static inline bool is_migrate_isolate_page(struct page *page) |
10 | { | |
11 | return get_pageblock_migratetype(page) == MIGRATE_ISOLATE; | |
12 | } | |
13 | static inline bool is_migrate_isolate(int migratetype) | |
14 | { | |
15 | return migratetype == MIGRATE_ISOLATE; | |
16 | } | |
17 | #else | |
ad53f92e JK |
18 | static inline bool has_isolate_pageblock(struct zone *zone) |
19 | { | |
20 | return false; | |
21 | } | |
194159fb MK |
22 | static inline bool is_migrate_isolate_page(struct page *page) |
23 | { | |
24 | return false; | |
25 | } | |
26 | static inline bool is_migrate_isolate(int migratetype) | |
27 | { | |
28 | return false; | |
29 | } | |
30 | #endif | |
ee6f509c | 31 | |
b023f468 WC |
32 | bool has_unmovable_pages(struct zone *zone, struct page *page, int count, |
33 | bool skip_hwpoisoned_pages); | |
ee6f509c MK |
34 | void set_pageblock_migratetype(struct page *page, int migratetype); |
35 | int move_freepages_block(struct zone *zone, struct page *page, | |
02aa0cdd | 36 | int migratetype, int *num_movable); |
435b405c | 37 | |
a5d76b54 KH |
38 | /* |
39 | * Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE. | |
0815f3d8 | 40 | * If specified range includes migrate types other than MOVABLE or CMA, |
a5d76b54 KH |
41 | * this will fail with -EBUSY. |
42 | * | |
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 | |
45 | * test it. | |
46 | */ | |
ee6f509c | 47 | int |
0815f3d8 | 48 | start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, |
b023f468 | 49 | unsigned migratetype, bool skip_hwpoisoned_pages); |
a5d76b54 KH |
50 | |
51 | /* | |
52 | * Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE. | |
53 | * target range is [start_pfn, end_pfn) | |
54 | */ | |
ee6f509c | 55 | int |
0815f3d8 MN |
56 | undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, |
57 | unsigned migratetype); | |
a5d76b54 KH |
58 | |
59 | /* | |
0815f3d8 | 60 | * Test all pages in [start_pfn, end_pfn) are isolated or not. |
a5d76b54 | 61 | */ |
b023f468 WC |
62 | int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn, |
63 | bool skip_hwpoisoned_pages); | |
a5d76b54 | 64 | |
723a0644 MK |
65 | struct page *alloc_migrate_target(struct page *page, unsigned long private, |
66 | int **resultp); | |
a5d76b54 KH |
67 | |
68 | #endif |