projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 48c96a36 JK |
1 | #ifndef __LINUX_PAGE_OWNER_H |
| 2 | #define __LINUX_PAGE_OWNER_H | |
| 3 | ||
| 4 | #ifdef CONFIG_PAGE_OWNER | |
| 5 | extern bool page_owner_inited; | |
| 6 | extern struct page_ext_operations page_owner_ops; | |
| 7 | ||
| 8 | extern void __reset_page_owner(struct page *page, unsigned int order); | |
| 9 | extern void __set_page_owner(struct page *page, | |
| 10 | unsigned int order, gfp_t gfp_mask); | |
| e2cfc911 | 11 | extern gfp_t __get_page_owner_gfp(struct page *page); |
| 48c96a36 JK |
12 | |
| 13 | static inline void reset_page_owner(struct page *page, unsigned int order) | |
| 14 | { | |
| 15 | if (likely(!page_owner_inited)) | |
| 16 | return; | |
| 17 | ||
| 18 | __reset_page_owner(page, order); | |
| 19 | } | |
| 20 | ||
| 21 | static inline void set_page_owner(struct page *page, | |
| 22 | unsigned int order, gfp_t gfp_mask) | |
| 23 | { | |
| 24 | if (likely(!page_owner_inited)) | |
| 25 | return; | |
| 26 | ||
| 27 | __set_page_owner(page, order, gfp_mask); | |
| 28 | } | |
| e2cfc911 JK |
29 | |
| 30 | static inline gfp_t get_page_owner_gfp(struct page *page) | |
| 31 | { | |
| 32 | if (likely(!page_owner_inited)) | |
| 33 | return 0; | |
| 34 | ||
| 35 | return __get_page_owner_gfp(page); | |
| 36 | } | |
| 48c96a36 JK |
37 | #else |
| 38 | static inline void reset_page_owner(struct page *page, unsigned int order) | |
| 39 | { | |
| 40 | } | |
| 41 | static inline void set_page_owner(struct page *page, | |
| 42 | unsigned int order, gfp_t gfp_mask) | |
| 43 | { | |
| 44 | } | |
| e2cfc911 JK |
45 | static inline gfp_t get_page_owner_gfp(struct page *page) |
| 46 | { | |
| 47 | return 0; | |
| 48 | } | |
| 48c96a36 JK |
49 | |
| 50 | #endif /* CONFIG_PAGE_OWNER */ | |
| 51 | #endif /* __LINUX_PAGE_OWNER_H */ |