1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LINUX_PAGE_OWNER_H
3 #define __LINUX_PAGE_OWNER_H
4
5 #include <linux/jump_label.h>
6
7 #ifdef CONFIG_PAGE_OWNER
8 extern struct static_key_false page_owner_inited;
9 extern struct page_ext_operations page_owner_ops;
10
11 extern depot_stack_handle_t get_page_owner_handle(struct page_ext *page_ext,
12 unsigned long pfn);
13 extern void __reset_page_owner(struct page *page, unsigned int order);
14 extern void __set_page_owner(struct page *page,
15 unsigned int order, gfp_t gfp_mask);
16 extern void __split_page_owner(struct page *page, unsigned int nr);
17 extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
18 extern void __set_page_owner_migrate_reason(struct page *page, int reason);
19 extern void __dump_page_owner(const struct page *page);
20 extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
21 pg_data_t *pgdat, struct zone *zone);
22
reset_page_owner(struct page * page,unsigned int order)23 static inline void reset_page_owner(struct page *page, unsigned int order)
24 {
25 if (static_branch_unlikely(&page_owner_inited))
26 __reset_page_owner(page, order);
27 }
28
set_page_owner(struct page * page,unsigned int order,gfp_t gfp_mask)29 static inline void set_page_owner(struct page *page,
30 unsigned int order, gfp_t gfp_mask)
31 {
32 if (static_branch_unlikely(&page_owner_inited))
33 __set_page_owner(page, order, gfp_mask);
34 }
35
split_page_owner(struct page * page,unsigned int nr)36 static inline void split_page_owner(struct page *page, unsigned int nr)
37 {
38 if (static_branch_unlikely(&page_owner_inited))
39 __split_page_owner(page, nr);
40 }
copy_page_owner(struct page * oldpage,struct page * newpage)41 static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
42 {
43 if (static_branch_unlikely(&page_owner_inited))
44 __copy_page_owner(oldpage, newpage);
45 }
set_page_owner_migrate_reason(struct page * page,int reason)46 static inline void set_page_owner_migrate_reason(struct page *page, int reason)
47 {
48 if (static_branch_unlikely(&page_owner_inited))
49 __set_page_owner_migrate_reason(page, reason);
50 }
dump_page_owner(const struct page * page)51 static inline void dump_page_owner(const struct page *page)
52 {
53 if (static_branch_unlikely(&page_owner_inited))
54 __dump_page_owner(page);
55 }
56 #else
reset_page_owner(struct page * page,unsigned int order)57 static inline void reset_page_owner(struct page *page, unsigned int order)
58 {
59 }
set_page_owner(struct page * page,unsigned int order,gfp_t gfp_mask)60 static inline void set_page_owner(struct page *page,
61 unsigned int order, gfp_t gfp_mask)
62 {
63 }
split_page_owner(struct page * page,unsigned int order)64 static inline void split_page_owner(struct page *page,
65 unsigned int order)
66 {
67 }
copy_page_owner(struct page * oldpage,struct page * newpage)68 static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
69 {
70 }
set_page_owner_migrate_reason(struct page * page,int reason)71 static inline void set_page_owner_migrate_reason(struct page *page, int reason)
72 {
73 }
dump_page_owner(const struct page * page)74 static inline void dump_page_owner(const struct page *page)
75 {
76 }
77 #endif /* CONFIG_PAGE_OWNER */
78 #endif /* __LINUX_PAGE_OWNER_H */
79