| | 1 | #ifndef __LINUX_PAGE_OWNER_H |
| | 2 | #define __LINUX_PAGE_OWNER_H |
| | 3 | |
| | 4 | #include <linux/jump_label.h> |
| | 5 | |
| | 6 | #ifdef CONFIG_PAGE_OWNER |
| | 7 | extern struct static_key_false page_owner_inited; |
| | 8 | extern struct page_ext_operations page_owner_ops; |
| | 9 | |
| | 10 | extern void __reset_page_owner(struct page *page, unsigned int order); |
| | 11 | extern void __set_page_owner(struct page *page, |
| | 12 | unsigned int order, gfp_t gfp_mask); |
| | 13 | extern void __split_page_owner(struct page *page, unsigned int order); |
| | 14 | extern void __copy_page_owner(struct page *oldpage, struct page *newpage); |
| | 15 | extern void __set_page_owner_migrate_reason(struct page *page, int reason); |
| | 16 | extern void __dump_page_owner(struct page *page); |
| | 17 | |
| | 18 | static inline void reset_page_owner(struct page *page, unsigned int order) |
| | 19 | { |
| | 20 | if (static_branch_unlikely(&page_owner_inited)) |
| | 21 | __reset_page_owner(page, order); |
| | 22 | } |
| | 23 | |
| | 24 | static inline void set_page_owner(struct page *page, |
| | 25 | unsigned int order, gfp_t gfp_mask) |
| | 26 | { |
| | 27 | if (static_branch_unlikely(&page_owner_inited)) |
| | 28 | __set_page_owner(page, order, gfp_mask); |
| | 29 | } |
| | 30 | |
| | 31 | static inline void split_page_owner(struct page *page, unsigned int order) |
| | 32 | { |
| | 33 | if (static_branch_unlikely(&page_owner_inited)) |
| | 34 | __split_page_owner(page, order); |
| | 35 | } |
| | 36 | static inline void copy_page_owner(struct page *oldpage, struct page *newpage) |
| | 37 | { |
| | 38 | if (static_branch_unlikely(&page_owner_inited)) |
| | 39 | __copy_page_owner(oldpage, newpage); |
| | 40 | } |
| | 41 | static inline void set_page_owner_migrate_reason(struct page *page, int reason) |
| | 42 | { |
| | 43 | if (static_branch_unlikely(&page_owner_inited)) |
| | 44 | __set_page_owner_migrate_reason(page, reason); |
| | 45 | } |
| | 46 | static inline void dump_page_owner(struct page *page) |
| | 47 | { |
| | 48 | if (static_branch_unlikely(&page_owner_inited)) |
| | 49 | __dump_page_owner(page); |
| | 50 | } |
| | 51 | #else |
| | 52 | static inline void reset_page_owner(struct page *page, unsigned int order) |
| | 53 | { |
| | 54 | } |
| | 55 | static inline void set_page_owner(struct page *page, |
| | 56 | unsigned int order, gfp_t gfp_mask) |
| | 57 | { |
| | 58 | } |
| | 59 | static inline void split_page_owner(struct page *page, |
| | 60 | unsigned int order) |
| | 61 | { |
| | 62 | } |
| | 63 | static inline void copy_page_owner(struct page *oldpage, struct page *newpage) |
| | 64 | { |
| | 65 | } |
| | 66 | static inline void set_page_owner_migrate_reason(struct page *page, int reason) |
| | 67 | { |
| | 68 | } |
| | 69 | static inline void dump_page_owner(struct page *page) |
| | 70 | { |
| | 71 | } |
| | 72 | #endif /* CONFIG_PAGE_OWNER */ |
| | 73 | #endif /* __LINUX_PAGE_OWNER_H */ |
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