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gerrit-public.fairphone.software / kernel / msm-4.9 / 0cbb0ae75a30908563e37d2c3429e79d207729cc / . / include / linux / page_owner.h
blob: 2be728d156b5555a6331a89798bd4b0bfc2a9562 [file] [log] [blame]
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]1#ifndef __LINUX_PAGE_OWNER_H
2#define __LINUX_PAGE_OWNER_H
3
Vlastimil Babka7dd80b82016-03-15 14:56:12 -0700[diff] [blame]4#include <linux/jump_label.h>
5
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]6#ifdef CONFIG_PAGE_OWNER
Vlastimil Babka7dd80b82016-03-15 14:56:12 -0700[diff] [blame]7extern struct static_key_false page_owner_inited;
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]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);
Joonsoo Kima9627bc2016-07-26 15:23:49 -0700[diff] [blame]13extern void __split_page_owner(struct page *page, unsigned int order);
Vlastimil Babkad435edc2016-03-15 14:56:15 -0700[diff] [blame]14extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
Vlastimil Babka7cd12b42016-03-15 14:56:18 -0700[diff] [blame]15extern void __set_page_owner_migrate_reason(struct page *page, int reason);
Vlastimil Babka4e462112016-03-15 14:56:21 -0700[diff] [blame]16extern void __dump_page_owner(struct page *page);
Joonsoo Kime2f612e2016-10-07 16:58:21 -0700[diff] [blame]17extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
18 pg_data_t *pgdat, struct zone *zone);
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]19
20static inline void reset_page_owner(struct page *page, unsigned int order)
21{
Vlastimil Babka7dd80b82016-03-15 14:56:12 -0700[diff] [blame]22 if (static_branch_unlikely(&page_owner_inited))
23 __reset_page_owner(page, order);
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]24}
25
26static inline void set_page_owner(struct page *page,
27 unsigned int order, gfp_t gfp_mask)
28{
Vlastimil Babka7dd80b82016-03-15 14:56:12 -0700[diff] [blame]29 if (static_branch_unlikely(&page_owner_inited))
30 __set_page_owner(page, order, gfp_mask);
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]31}
Joonsoo Kime2cfc912015-07-17 16:24:18 -0700[diff] [blame]32
Joonsoo Kima9627bc2016-07-26 15:23:49 -0700[diff] [blame]33static inline void split_page_owner(struct page *page, unsigned int order)
Joonsoo Kime2cfc912015-07-17 16:24:18 -0700[diff] [blame]34{
Vlastimil Babka7dd80b82016-03-15 14:56:12 -0700[diff] [blame]35 if (static_branch_unlikely(&page_owner_inited))
Joonsoo Kima9627bc2016-07-26 15:23:49 -0700[diff] [blame]36 __split_page_owner(page, order);
Joonsoo Kime2cfc912015-07-17 16:24:18 -0700[diff] [blame]37}
Vlastimil Babkad435edc2016-03-15 14:56:15 -0700[diff] [blame]38static 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}
Vlastimil Babka7cd12b42016-03-15 14:56:18 -0700[diff] [blame]43static 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}
Vlastimil Babka4e462112016-03-15 14:56:21 -0700[diff] [blame]48static inline void dump_page_owner(struct page *page)
49{
50 if (static_branch_unlikely(&page_owner_inited))
51 __dump_page_owner(page);
52}
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]53#else
54static inline void reset_page_owner(struct page *page, unsigned int order)
55{
56}
57static inline void set_page_owner(struct page *page,
58 unsigned int order, gfp_t gfp_mask)
59{
60}
Joonsoo Kima9627bc2016-07-26 15:23:49 -0700[diff] [blame]61static inline void split_page_owner(struct page *page,
62 unsigned int order)
Joonsoo Kime2cfc912015-07-17 16:24:18 -0700[diff] [blame]63{
Joonsoo Kime2cfc912015-07-17 16:24:18 -0700[diff] [blame]64}
Vlastimil Babkad435edc2016-03-15 14:56:15 -0700[diff] [blame]65static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
66{
67}
Vlastimil Babka7cd12b42016-03-15 14:56:18 -0700[diff] [blame]68static inline void set_page_owner_migrate_reason(struct page *page, int reason)
69{
70}
Vlastimil Babka4e462112016-03-15 14:56:21 -0700[diff] [blame]71static inline void dump_page_owner(struct page *page)
72{
73}
Joonsoo Kim48c96a32014-12-12 16:56:01 -0800[diff] [blame]74#endif /* CONFIG_PAGE_OWNER */
75#endif /* __LINUX_PAGE_OWNER_H */