| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __LINUX_PAGE_OWNER_H |
| #define __LINUX_PAGE_OWNER_H |
| |
| #include <linux/jump_label.h> |
| |
| #ifdef CONFIG_PAGE_OWNER |
| extern struct static_key_false page_owner_inited; |
| extern struct page_ext_operations page_owner_ops; |
| |
| extern depot_stack_handle_t get_page_owner_handle(struct page_ext *page_ext, |
| unsigned long pfn); |
| extern void __reset_page_owner(struct page *page, unsigned short order); |
| extern void __set_page_owner(struct page *page, |
| unsigned short order, gfp_t gfp_mask); |
| extern void __split_page_owner(struct page *page, unsigned int nr); |
| extern void __folio_copy_owner(struct folio *newfolio, struct folio *old); |
| extern void __set_page_owner_migrate_reason(struct page *page, int reason); |
| extern void __dump_page_owner(const struct page *page); |
| extern void pagetypeinfo_showmixedcount_print(struct seq_file *m, |
| pg_data_t *pgdat, struct zone *zone); |
| |
| static inline void reset_page_owner(struct page *page, unsigned short order) |
| { |
| if (static_branch_unlikely(&page_owner_inited)) |
| __reset_page_owner(page, order); |
| } |
| |
| static inline void set_page_owner(struct page *page, |
| unsigned short order, gfp_t gfp_mask) |
| { |
| if (static_branch_unlikely(&page_owner_inited)) |
| __set_page_owner(page, order, gfp_mask); |
| } |
| |
| static inline void split_page_owner(struct page *page, unsigned int nr) |
| { |
| if (static_branch_unlikely(&page_owner_inited)) |
| __split_page_owner(page, nr); |
| } |
| static inline void folio_copy_owner(struct folio *newfolio, struct folio *old) |
| { |
| if (static_branch_unlikely(&page_owner_inited)) |
| __folio_copy_owner(newfolio, old); |
| } |
| static inline void set_page_owner_migrate_reason(struct page *page, int reason) |
| { |
| if (static_branch_unlikely(&page_owner_inited)) |
| __set_page_owner_migrate_reason(page, reason); |
| } |
| static inline void dump_page_owner(const struct page *page) |
| { |
| if (static_branch_unlikely(&page_owner_inited)) |
| __dump_page_owner(page); |
| } |
| #else |
| static inline void reset_page_owner(struct page *page, unsigned short order) |
| { |
| } |
| static inline void set_page_owner(struct page *page, |
| unsigned int order, gfp_t gfp_mask) |
| { |
| } |
| static inline void split_page_owner(struct page *page, |
| unsigned short order) |
| { |
| } |
| static inline void folio_copy_owner(struct folio *newfolio, struct folio *folio) |
| { |
| } |
| static inline void set_page_owner_migrate_reason(struct page *page, int reason) |
| { |
| } |
| static inline void dump_page_owner(const struct page *page) |
| { |
| } |
| #endif /* CONFIG_PAGE_OWNER */ |
| #endif /* __LINUX_PAGE_OWNER_H */ |