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 bool page_owner_enabled;
9 extern struct static_key_false page_owner_inited;
10 extern struct page_ext_operations page_owner_ops;
11
12 extern struct page_owner *get_page_owner(struct page_ext *page_ext);
13 extern depot_stack_handle_t get_page_owner_handle(struct page_ext *page_ext,
14 unsigned long pfn);
15 extern void __reset_page_owner(struct page *page, unsigned int order);
16 extern void __set_page_owner(struct page *page,
17 unsigned int order, gfp_t gfp_mask);
18 extern void __split_page_owner(struct page *page, unsigned int nr);
19 extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
20 extern void __set_page_owner_migrate_reason(struct page *page, int reason);
21 extern void __dump_page_owner(struct page *page);
22 extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
23 pg_data_t *pgdat, struct zone *zone);
24
reset_page_owner(struct page * page,unsigned int order)25 static inline void reset_page_owner(struct page *page, unsigned int order)
26 {
27 if (static_branch_unlikely(&page_owner_inited))
28 __reset_page_owner(page, order);
29 }
30
set_page_owner(struct page * page,unsigned int order,gfp_t gfp_mask)31 static inline void set_page_owner(struct page *page,
32 unsigned int order, gfp_t gfp_mask)
33 {
34 if (static_branch_unlikely(&page_owner_inited))
35 __set_page_owner(page, order, gfp_mask);
36 }
37
split_page_owner(struct page * page,unsigned int nr)38 static inline void split_page_owner(struct page *page, unsigned int nr)
39 {
40 if (static_branch_unlikely(&page_owner_inited))
41 __split_page_owner(page, nr);
42 }
copy_page_owner(struct page * oldpage,struct page * newpage)43 static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
44 {
45 if (static_branch_unlikely(&page_owner_inited))
46 __copy_page_owner(oldpage, newpage);
47 }
set_page_owner_migrate_reason(struct page * page,int reason)48 static inline void set_page_owner_migrate_reason(struct page *page, int reason)
49 {
50 if (static_branch_unlikely(&page_owner_inited))
51 __set_page_owner_migrate_reason(page, reason);
52 }
dump_page_owner(struct page * page)53 static inline void dump_page_owner(struct page *page)
54 {
55 if (static_branch_unlikely(&page_owner_inited))
56 __dump_page_owner(page);
57 }
58 #else
reset_page_owner(struct page * page,unsigned int order)59 static inline void reset_page_owner(struct page *page, unsigned int order)
60 {
61 }
set_page_owner(struct page * page,unsigned int order,gfp_t gfp_mask)62 static inline void set_page_owner(struct page *page,
63 unsigned int order, gfp_t gfp_mask)
64 {
65 }
split_page_owner(struct page * page,unsigned int order)66 static inline void split_page_owner(struct page *page,
67 unsigned int order)
68 {
69 }
copy_page_owner(struct page * oldpage,struct page * newpage)70 static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
71 {
72 }
set_page_owner_migrate_reason(struct page * page,int reason)73 static inline void set_page_owner_migrate_reason(struct page *page, int reason)
74 {
75 }
dump_page_owner(struct page * page)76 static inline void dump_page_owner(struct page *page)
77 {
78 }
79 #endif /* CONFIG_PAGE_OWNER */
80 #endif /* __LINUX_PAGE_OWNER_H */
81