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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/linux/page-isolation.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_PAGEISOLATION_H
3 #define __LINUX_PAGEISOLATION_H
5 #ifdef CONFIG_MEMORY_ISOLATION
6 static inline bool has_isolate_pageblock(struct zone
*zone
)
8 return zone
->nr_isolate_pageblock
;
10 static inline bool is_migrate_isolate_page(struct page
*page
)
12 return get_pageblock_migratetype(page
) == MIGRATE_ISOLATE
;
14 static inline bool is_migrate_isolate(int migratetype
)
16 return migratetype
== MIGRATE_ISOLATE
;
19 static inline bool has_isolate_pageblock(struct zone
*zone
)
23 static inline bool is_migrate_isolate_page(struct page
*page
)
27 static inline bool is_migrate_isolate(int migratetype
)
33 #define SKIP_HWPOISON 0x1
34 #define REPORT_FAILURE 0x2
36 bool has_unmovable_pages(struct zone
*zone
, struct page
*page
, int count
,
37 int migratetype
, int flags
);
38 void set_pageblock_migratetype(struct page
*page
, int migratetype
);
39 int move_freepages_block(struct zone
*zone
, struct page
*page
,
40 int migratetype
, int *num_movable
);
43 * Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE.
46 start_isolate_page_range(unsigned long start_pfn
, unsigned long end_pfn
,
47 unsigned migratetype
, int flags
);
50 * Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE.
51 * target range is [start_pfn, end_pfn)
54 undo_isolate_page_range(unsigned long start_pfn
, unsigned long end_pfn
,
55 unsigned migratetype
);
58 * Test all pages in [start_pfn, end_pfn) are isolated or not.
60 int test_pages_isolated(unsigned long start_pfn
, unsigned long end_pfn
,
61 bool skip_hwpoisoned_pages
);
63 struct page
*alloc_migrate_target(struct page
*page
, unsigned long private);