projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 48c96a36 JK |
1 | #ifndef __LINUX_PAGE_OWNER_H |
| 2 | #define __LINUX_PAGE_OWNER_H | |
| 3 | ||
| 7dd80b8a VB |
4 | #include <linux/jump_label.h> |
| 5 | ||
| 48c96a36 | 6 | #ifdef CONFIG_PAGE_OWNER |
| 7dd80b8a | 7 | extern struct static_key_false page_owner_inited; |
| 48c96a36 JK |
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); | |
| e2cfc911 | 13 | extern gfp_t __get_page_owner_gfp(struct page *page); |
| d435edca | 14 | extern void __copy_page_owner(struct page *oldpage, struct page *newpage); |
| 48c96a36 JK |
15 | |
| 16 | static inline void reset_page_owner(struct page *page, unsigned int order) | |
| 17 | { | |
| 7dd80b8a VB |
18 | if (static_branch_unlikely(&page_owner_inited)) |
| 19 | __reset_page_owner(page, order); | |
| 48c96a36 JK |
20 | } |
| 21 | ||
| 22 | static inline void set_page_owner(struct page *page, | |
| 23 | unsigned int order, gfp_t gfp_mask) | |
| 24 | { | |
| 7dd80b8a VB |
25 | if (static_branch_unlikely(&page_owner_inited)) |
| 26 | __set_page_owner(page, order, gfp_mask); | |
| 48c96a36 | 27 | } |
| e2cfc911 JK |
28 | |
| 29 | static inline gfp_t get_page_owner_gfp(struct page *page) | |
| 30 | { | |
| 7dd80b8a VB |
31 | if (static_branch_unlikely(&page_owner_inited)) |
| 32 | return __get_page_owner_gfp(page); | |
| 33 | else | |
| e2cfc911 | 34 | return 0; |
| e2cfc911 | 35 | } |
| d435edca VB |
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 | } | |
| 48c96a36 JK |
41 | #else |
| 42 | static inline void reset_page_owner(struct page *page, unsigned int order) | |
| 43 | { | |
| 44 | } | |
| 45 | static inline void set_page_owner(struct page *page, | |
| 46 | unsigned int order, gfp_t gfp_mask) | |
| 47 | { | |
| 48 | } | |
| e2cfc911 JK |
49 | static inline gfp_t get_page_owner_gfp(struct page *page) |
| 50 | { | |
| 51 | return 0; | |
| 52 | } | |
| d435edca VB |
53 | static inline void copy_page_owner(struct page *oldpage, struct page *newpage) |
| 54 | { | |
| 55 | } | |
| 48c96a36 JK |
56 | #endif /* CONFIG_PAGE_OWNER */ |
| 57 | #endif /* __LINUX_PAGE_OWNER_H */ |