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- /* 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 */
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