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71 lines
1.9 KiB
71 lines
1.9 KiB
#ifndef __LINUX_PAGEISOLATION_H |
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#define __LINUX_PAGEISOLATION_H |
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#ifdef CONFIG_MEMORY_ISOLATION |
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static inline bool has_isolate_pageblock(struct zone *zone) |
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{ |
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return zone->nr_isolate_pageblock; |
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} |
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static inline bool is_migrate_isolate_page(struct page *page) |
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{ |
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return get_pageblock_migratetype(page) == MIGRATE_ISOLATE; |
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} |
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static inline bool is_migrate_isolate(int migratetype) |
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{ |
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return migratetype == MIGRATE_ISOLATE; |
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} |
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#else |
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static inline bool has_isolate_pageblock(struct zone *zone) |
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{ |
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return false; |
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} |
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static inline bool is_migrate_isolate_page(struct page *page) |
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{ |
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return false; |
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} |
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static inline bool is_migrate_isolate(int migratetype) |
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{ |
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return false; |
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} |
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#endif |
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bool has_unmovable_pages(struct zone *zone, struct page *page, int count, |
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bool skip_hwpoisoned_pages); |
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void set_pageblock_migratetype(struct page *page, int migratetype); |
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int move_freepages_block(struct zone *zone, struct page *page, |
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int migratetype); |
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int move_freepages(struct zone *zone, |
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struct page *start_page, struct page *end_page, |
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int migratetype); |
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/* |
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* Changes migrate type in [start_pfn, end_pfn) to be MIGRATE_ISOLATE. |
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* If specified range includes migrate types other than MOVABLE or CMA, |
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* this will fail with -EBUSY. |
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* |
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* For isolating all pages in the range finally, the caller have to |
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* free all pages in the range. test_page_isolated() can be used for |
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* test it. |
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*/ |
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int |
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start_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, |
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unsigned migratetype, bool skip_hwpoisoned_pages); |
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/* |
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* Changes MIGRATE_ISOLATE to MIGRATE_MOVABLE. |
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* target range is [start_pfn, end_pfn) |
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*/ |
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int |
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undo_isolate_page_range(unsigned long start_pfn, unsigned long end_pfn, |
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unsigned migratetype); |
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/* |
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* Test all pages in [start_pfn, end_pfn) are isolated or not. |
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*/ |
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int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn, |
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bool skip_hwpoisoned_pages); |
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struct page *alloc_migrate_target(struct page *page, unsigned long private, |
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int **resultp); |
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#endif
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