Line data    Source code

       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 int order);
      12             : extern void __set_page_owner(struct page *page,
      13             :                         unsigned int order, gfp_t gfp_mask);
      14             : extern void __split_page_owner(struct page *page, unsigned int nr);
      15             : extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
      16             : extern void __set_page_owner_migrate_reason(struct page *page, int reason);
      17             : extern void __dump_page_owner(struct page *page);
      18             : extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
      19             :                                         pg_data_t *pgdat, struct zone *zone);
      20             : 
      21             : static inline void reset_page_owner(struct page *page, unsigned int order)
      22             : {
      23             :         if (static_branch_unlikely(&page_owner_inited))
      24             :                 __reset_page_owner(page, order);
      25             : }
      26             : 
      27             : static inline void set_page_owner(struct page *page,
      28             :                         unsigned int order, gfp_t gfp_mask)
      29             : {
      30             :         if (static_branch_unlikely(&page_owner_inited))
      31             :                 __set_page_owner(page, order, gfp_mask);
      32             : }
      33             : 
      34             : static inline void split_page_owner(struct page *page, unsigned int nr)
      35             : {
      36             :         if (static_branch_unlikely(&page_owner_inited))
      37             :                 __split_page_owner(page, nr);
      38             : }
      39             : static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
      40             : {
      41             :         if (static_branch_unlikely(&page_owner_inited))
      42             :                 __copy_page_owner(oldpage, newpage);
      43             : }
      44             : static inline void set_page_owner_migrate_reason(struct page *page, int reason)
      45             : {
      46             :         if (static_branch_unlikely(&page_owner_inited))
      47             :                 __set_page_owner_migrate_reason(page, reason);
      48             : }
      49             : static inline void dump_page_owner(struct page *page)
      50             : {
      51             :         if (static_branch_unlikely(&page_owner_inited))
      52             :                 __dump_page_owner(page);
      53             : }
      54             : #else
      55             : static inline void reset_page_owner(struct page *page, unsigned int order)
      56             : {
      57             : }
      58      192995 : static inline void set_page_owner(struct page *page,
      59             :                         unsigned int order, gfp_t gfp_mask)
      60             : {
      61      192995 : }
      62          12 : static inline void split_page_owner(struct page *page,
      63             :                         unsigned int order)
      64             : {
      65          12 : }
      66           0 : static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
      67             : {
      68           0 : }
      69             : static inline void set_page_owner_migrate_reason(struct page *page, int reason)
      70             : {
      71             : }
      72           0 : static inline void dump_page_owner(struct page *page)
      73             : {
      74           0 : }
      75             : #endif /* CONFIG_PAGE_OWNER */
      76             : #endif /* __LINUX_PAGE_OWNER_H */