page_owner.h 2.5 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980
  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __LINUX_PAGE_OWNER_H
  3. #define __LINUX_PAGE_OWNER_H
  4. #include <linux/jump_label.h>
  5. #ifdef CONFIG_PAGE_OWNER
  6. extern bool page_owner_enabled;
  7. extern struct static_key_false page_owner_inited;
  8. extern struct page_ext_operations page_owner_ops;
  9. extern struct page_owner *get_page_owner(struct page_ext *page_ext);
  10. extern depot_stack_handle_t get_page_owner_handle(struct page_ext *page_ext,
  11. unsigned long pfn);
  12. extern void __reset_page_owner(struct page *page, unsigned int order);
  13. extern void __set_page_owner(struct page *page,
  14. unsigned int order, gfp_t gfp_mask);
  15. extern void __split_page_owner(struct page *page, unsigned int nr);
  16. extern void __copy_page_owner(struct page *oldpage, struct page *newpage);
  17. extern void __set_page_owner_migrate_reason(struct page *page, int reason);
  18. extern void __dump_page_owner(struct page *page);
  19. extern void pagetypeinfo_showmixedcount_print(struct seq_file *m,
  20. pg_data_t *pgdat, struct zone *zone);
  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. static inline void set_page_owner(struct page *page,
  27. unsigned int order, gfp_t gfp_mask)
  28. {
  29. if (static_branch_unlikely(&page_owner_inited))
  30. __set_page_owner(page, order, gfp_mask);
  31. }
  32. static inline void split_page_owner(struct page *page, unsigned int nr)
  33. {
  34. if (static_branch_unlikely(&page_owner_inited))
  35. __split_page_owner(page, nr);
  36. }
  37. static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
  38. {
  39. if (static_branch_unlikely(&page_owner_inited))
  40. __copy_page_owner(oldpage, newpage);
  41. }
  42. static inline void set_page_owner_migrate_reason(struct page *page, int reason)
  43. {
  44. if (static_branch_unlikely(&page_owner_inited))
  45. __set_page_owner_migrate_reason(page, reason);
  46. }
  47. static inline void dump_page_owner(struct page *page)
  48. {
  49. if (static_branch_unlikely(&page_owner_inited))
  50. __dump_page_owner(page);
  51. }
  52. #else
  53. static inline void reset_page_owner(struct page *page, unsigned int order)
  54. {
  55. }
  56. static inline void set_page_owner(struct page *page,
  57. unsigned int order, gfp_t gfp_mask)
  58. {
  59. }
  60. static inline void split_page_owner(struct page *page,
  61. unsigned int order)
  62. {
  63. }
  64. static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
  65. {
  66. }
  67. static inline void set_page_owner_migrate_reason(struct page *page, int reason)
  68. {
  69. }
  70. static inline void dump_page_owner(struct page *page)
  71. {
  72. }
  73. #endif /* CONFIG_PAGE_OWNER */
  74. #endif /* __LINUX_PAGE_OWNER_H */