Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
7extern struct static_key_false page_owner_inited;
8extern struct page_ext_operations page_owner_ops;
9
10extern void __reset_page_owner(struct page *page, unsigned int order);
11extern void __set_page_owner(struct page *page,
12 unsigned int order, gfp_t gfp_mask);
13extern void __split_page_owner(struct page *page, unsigned int order);
14extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
15extern void __set_page_owner_migrate_reason(struct page *page, int reason);
16extern void __dump_page_owner(struct page *page);
17
18static inline void reset_page_owner(struct page *page, unsigned int order)
19{
20 if (static_branch_unlikely(&page_owner_inited))
21 __reset_page_owner(page, order);
22}
23
24static inline void set_page_owner(struct page *page,
25 unsigned int order, gfp_t gfp_mask)
26{
27 if (static_branch_unlikely(&page_owner_inited))
28 __set_page_owner(page, order, gfp_mask);
29}
30
31static inline void split_page_owner(struct page *page, unsigned int order)
32{
33 if (static_branch_unlikely(&page_owner_inited))
34 __split_page_owner(page, order);
35}
36static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
37{
38 if (static_branch_unlikely(&page_owner_inited))
39 __copy_page_owner(oldpage, newpage);
40}
41static inline void set_page_owner_migrate_reason(struct page *page, int reason)
42{
43 if (static_branch_unlikely(&page_owner_inited))
44 __set_page_owner_migrate_reason(page, reason);
45}
46static inline void dump_page_owner(struct page *page)
47{
48 if (static_branch_unlikely(&page_owner_inited))
49 __dump_page_owner(page);
50}
51#else
52static inline void reset_page_owner(struct page *page, unsigned int order)
53{
54}
55static inline void set_page_owner(struct page *page,
56 unsigned int order, gfp_t gfp_mask)
57{
58}
59static inline void split_page_owner(struct page *page,
60 unsigned int order)
61{
62}
63static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
64{
65}
66static inline void set_page_owner_migrate_reason(struct page *page, int reason)
67{
68}
69static inline void dump_page_owner(struct page *page)
70{
71}
72#endif /* CONFIG_PAGE_OWNER */
73#endif /* __LINUX_PAGE_OWNER_H */