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