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Linux ip-172-31-46-210 5.15.0-1033-aws #37~20.04.1-Ubuntu SMP Fri Mar 17 11:39:30 UTC 2023 x86_64
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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 struct page *has_unmovable_pages(struct zone *zone, struct page *page, int migratetype, int flags); void set_pageblock_migratetype(struct page *page, int migratetype); int move_freepages_block(struct zone *zone, struct page *page, int migratetype, int *num_movable); /* * Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE. */ int start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, unsigned migratetype, int flags); /* * Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE. * target range is [start_pfn, end_pfn) */ void undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, unsigned migratetype); /* * Test all pages in [start_pfn, end_pfn) are isolated or not. */ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn, int isol_flags); struct page *alloc_migrate_target(struct page *page, unsigned long private); #endif