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