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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 */ |