LCOV - code coverage report
Current view: top level - include/linux - page_owner.h (source / functions) Hit Total Coverage
Test: combined.info Lines: 2 10 20.0 %
Date: 2022-03-28 15:32:58 Functions: 0 0 -
Branches: 1 2 50.0 %

           Branch data     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 order);
      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 order)
      35                 :            : {
      36                 :            :         if (static_branch_unlikely(&page_owner_inited))
      37                 :            :                 __split_page_owner(page, order);
      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                 :    3572515 : static inline void set_page_owner(struct page *page,
      59                 :            :                         unsigned int order, gfp_t gfp_mask)
      60                 :            : {
      61         [ +  - ]:    3572515 : }
      62                 :          0 : static inline void split_page_owner(struct page *page,
      63                 :            :                         unsigned int order)
      64                 :            : {
      65                 :          0 : }
      66                 :          0 : static inline void copy_page_owner(struct page *oldpage, struct page *newpage)
      67                 :            : {
      68                 :          0 : }
      69                 :          0 : static inline void set_page_owner_migrate_reason(struct page *page, int reason)
      70                 :            : {
      71                 :          0 : }
      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 */

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