1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_PAGEISOLATION_H
3 #define __LINUX_PAGEISOLATION_H
4
5 #ifdef CONFIG_MEMORY_ISOLATION
6 static inline bool has_isolate_pageblock(struct zone *zone)
7 {
8 return zone->nr_isolate_pageblock;
9 }
10 static inline bool is_migrate_isolate_page(struct page *page)
11 {
12 return get_pageblock_migratetype(page) == MIGRATE_ISOLATE;
13 }
14 static inline bool is_migrate_isolate(int migratetype)
15 {
16 return migratetype == MIGRATE_ISOLATE;
17 }
18 #else
19 static inline bool has_isolate_pageblock(struct zone *zone)
20 {
21 return false;
22 }
23 static inline bool is_migrate_isolate_page(struct page *page)
24 {
25 return false;
26 }
27 static inline bool is_migrate_isolate(int migratetype)
28 {
29 return false;
30 }
31 #endif
32
33 #define MEMORY_OFFLINE 0x1
34 #define REPORT_FAILURE 0x2
35
36 void set_pageblock_migratetype(struct page *page, int migratetype);
37
38 bool move_freepages_block_isolate(struct zone *zone, struct page *page,
39 int migratetype);
40
41 int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
42 int migratetype, int flags, gfp_t gfp_flags);
43
44 void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn,
45 int migratetype);
46
47 int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn,
48 int isol_flags);
49 #endif
50
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