GNU Linux-libre 4.9.331-gnu1
[releases.git] / include / linux / page_owner.h
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 extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
18                                         pg_data_t *pgdat, struct zone *zone);
19
20 static inline void reset_page_owner(struct page *page, unsigned int order)
21 {
22         if (static_branch_unlikely(&page_owner_inited))
23                 __reset_page_owner(page, order);
24 }
25
26 static inline void set_page_owner(struct page *page,
27                         unsigned int order, gfp_t gfp_mask)
28 {
29         if (static_branch_unlikely(&page_owner_inited))
30                 __set_page_owner(page, order, gfp_mask);
31 }
32
33 static inline void split_page_owner(struct page *page, unsigned int order)
34 {
35         if (static_branch_unlikely(&page_owner_inited))
36                 __split_page_owner(page, order);
37 }
38 static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
39 {
40         if (static_branch_unlikely(&page_owner_inited))
41                 __copy_page_owner(oldpage, newpage);
42 }
43 static inline void set_page_owner_migrate_reason(struct page *page, int reason)
44 {
45         if (static_branch_unlikely(&page_owner_inited))
46                 __set_page_owner_migrate_reason(page, reason);
47 }
48 static inline void dump_page_owner(struct page *page)
49 {
50         if (static_branch_unlikely(&page_owner_inited))
51                 __dump_page_owner(page);
52 }
53 #else
54 static inline void reset_page_owner(struct page *page, unsigned int order)
55 {
56 }
57 static inline void set_page_owner(struct page *page,
58                         unsigned int order, gfp_t gfp_mask)
59 {
60 }
61 static inline void split_page_owner(struct page *page,
62                         unsigned int order)
63 {
64 }
65 static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
66 {
67 }
68 static inline void set_page_owner_migrate_reason(struct page *page, int reason)
69 {
70 }
71 static inline void dump_page_owner(struct page *page)
72 {
73 }
74 #endif /* CONFIG_PAGE_OWNER */
75 #endif /* __LINUX_PAGE_OWNER_H */