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| 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 void __reset_page_owner(struct page *page, unsigned short order); |
| 12 | extern void __set_page_owner(struct page *page, |
| 13 | unsigned short order, gfp_t gfp_mask); |
| 14 | extern void __split_page_owner(struct page *page, int old_order, |
| 15 | int new_order); |
| 16 | extern void __folio_copy_owner(struct folio *newfolio, struct folio *old); |
| 17 | extern void __folio_set_owner_migrate_reason(struct folio *folio, int reason); |
| 18 | extern void __dump_page_owner(const struct page *page); |
| 19 | extern void pagetypeinfo_showmixedcount_print(struct seq_file *m, |
| 20 | pg_data_t *pgdat, struct zone *zone); |
| 21 | |
| 22 | static inline void reset_page_owner(struct page *page, unsigned short order) |
| 23 | { |
| 24 | if (static_branch_unlikely(&page_owner_inited)) |
| 25 | __reset_page_owner(page, order); |
| 26 | } |
| 27 | |
| 28 | static inline void set_page_owner(struct page *page, |
| 29 | unsigned short order, gfp_t gfp_mask) |
| 30 | { |
| 31 | if (static_branch_unlikely(&page_owner_inited)) |
| 32 | __set_page_owner(page, order, gfp_mask); |
| 33 | } |
| 34 | |
| 35 | static inline void split_page_owner(struct page *page, int old_order, |
| 36 | int new_order) |
| 37 | { |
| 38 | if (static_branch_unlikely(&page_owner_inited)) |
| 39 | __split_page_owner(page, old_order, new_order); |
| 40 | } |
| 41 | static inline void folio_copy_owner(struct folio *newfolio, struct folio *old) |
| 42 | { |
| 43 | if (static_branch_unlikely(&page_owner_inited)) |
| 44 | __folio_copy_owner(newfolio, old); |
| 45 | } |
| 46 | static inline void folio_set_owner_migrate_reason(struct folio *folio, int reason) |
| 47 | { |
| 48 | if (static_branch_unlikely(&page_owner_inited)) |
| 49 | __folio_set_owner_migrate_reason(folio, reason); |
| 50 | } |
| 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 |
| 57 | static inline void reset_page_owner(struct page *page, unsigned short order) |
| 58 | { |
| 59 | } |
| 60 | static inline void set_page_owner(struct page *page, |
| 61 | unsigned short order, gfp_t gfp_mask) |
| 62 | { |
| 63 | } |
| 64 | static inline void split_page_owner(struct page *page, int old_order, |
| 65 | int new_order) |
| 66 | { |
| 67 | } |
| 68 | static inline void folio_copy_owner(struct folio *newfolio, struct folio *folio) |
| 69 | { |
| 70 | } |
| 71 | static inline void folio_set_owner_migrate_reason(struct folio *folio, int reason) |
| 72 | { |
| 73 | } |
| 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 |
Warning: This file is not a C or C++ file. It does not have highlighting.