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
 8extern struct static_key_false page_owner_inited;
 9extern struct page_ext_operations page_owner_ops;
10
11extern void __reset_page_owner(struct page *page, unsigned int order);
12extern void __set_page_owner(struct page *page,
13			unsigned int order, gfp_t gfp_mask);
14extern void __split_page_owner(struct page *page, unsigned int order);
15extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
16extern void __set_page_owner_migrate_reason(struct page *page, int reason);
17extern void __dump_page_owner(struct page *page);
18extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
19					pg_data_t *pgdat, struct zone *zone);
20
21static inline void reset_page_owner(struct page *page, unsigned int order)
22{
23	if (static_branch_unlikely(&page_owner_inited))
24		__reset_page_owner(page, order);
25}
26
27static inline void set_page_owner(struct page *page,
28			unsigned int order, gfp_t gfp_mask)
29{
30	if (static_branch_unlikely(&page_owner_inited))
31		__set_page_owner(page, order, gfp_mask);
32}
33
34static inline void split_page_owner(struct page *page, unsigned int order)
35{
36	if (static_branch_unlikely(&page_owner_inited))
37		__split_page_owner(page, order);
38}
39static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
40{
41	if (static_branch_unlikely(&page_owner_inited))
42		__copy_page_owner(oldpage, newpage);
43}
44static inline void set_page_owner_migrate_reason(struct page *page, int reason)
45{
46	if (static_branch_unlikely(&page_owner_inited))
47		__set_page_owner_migrate_reason(page, reason);
48}
49static inline void dump_page_owner(struct page *page)
50{
51	if (static_branch_unlikely(&page_owner_inited))
52		__dump_page_owner(page);
53}
54#else
55static inline void reset_page_owner(struct page *page, unsigned int order)
56{
57}
58static inline void set_page_owner(struct page *page,
59			unsigned int order, gfp_t gfp_mask)
60{
61}
62static inline void split_page_owner(struct page *page,
63			unsigned int order)
64{
65}
66static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
67{
68}
69static inline void set_page_owner_migrate_reason(struct page *page, int reason)
70{
71}
72static inline void dump_page_owner(struct page *page)
73{
74}
75#endif /* CONFIG_PAGE_OWNER */
76#endif /* __LINUX_PAGE_OWNER_H */