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