name : page-isolation.h /* SPDX-License-Identifier: GPL-2.0 */ #ifndef __LINUX_PAGEISOLATION_H #define __LINUX_PAGEISOLATION_H #ifdef CONFIG_MEMORY_ISOLATION static inline bool has_isolate_pageblock(struct zone *zone) { return zone->nr_isolate_pageblock; } static inline bool is_migrate_isolate_page(struct page *page) { return get_pageblock_migratetype(page) == MIGRATE_ISOLATE; } static inline bool is_migrate_isolate(int migratetype) { return migratetype == MIGRATE_ISOLATE; } #else static inline bool has_isolate_pageblock(struct zone *zone) { return false; } static inline bool is_migrate_isolate_page(struct page *page) { return false; } static inline bool is_migrate_isolate(int migratetype) { return false; } #endif #define MEMORY_OFFLINE 0x1 #define REPORT_FAILURE 0x2 void set_pageblock_migratetype(struct page *page, int migratetype); int move_freepages_block(struct zone *zone, struct page *page, int migratetype, int *num_movable); int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, int migratetype, int flags, gfp_t gfp_flags); void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, int migratetype); int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn, int isol_flags); #endif