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include
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linux
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vtime.h

vtime.h 2.3 KB
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  1. #ifndef _LINUX_KERNEL_VTIME_H
    2. 

  2. #define _LINUX_KERNEL_VTIME_H
    3. 

  3. 

  4. struct task_struct;
    5. 

  5. 

  6. #ifdef CONFIG_VIRT_CPU_ACCOUNTING
    7. 

  7. extern void vtime_task_switch(struct task_struct *prev);
    8. 

  8. extern void vtime_account_system(struct task_struct *tsk);
    9. 

  9. extern void vtime_account_idle(struct task_struct *tsk);
    10. 

  10. extern void vtime_account_user(struct task_struct *tsk);
    11. 

  11. extern void vtime_account_irq_enter(struct task_struct *tsk);
    12. 

  12. 

  13. #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
    14. 

  14. static inline bool vtime_accounting_enabled(void) { return true; }
    15. 

  15. #endif
    16. 

  16. 

  17. #else /* !CONFIG_VIRT_CPU_ACCOUNTING */
    18. 

  18. 

  19. static inline void vtime_task_switch(struct task_struct *prev) { }
    20. 

  20. static inline void vtime_account_system(struct task_struct *tsk) { }
    21. 

  21. static inline void vtime_account_user(struct task_struct *tsk) { }
    22. 

  22. static inline void vtime_account_irq_enter(struct task_struct *tsk) { }
    23. 

  23. static inline bool vtime_accounting_enabled(void) { return false; }
    24. 

  24. #endif
    25. 

  25. 

  26. #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
    27. 

  27. extern void arch_vtime_task_switch(struct task_struct *tsk);
    28. 

  28. extern void vtime_account_irq_exit(struct task_struct *tsk);
    29. 

  29. extern bool vtime_accounting_enabled(void);
    30. 

  30. extern void vtime_user_enter(struct task_struct *tsk);
    31. 

  31. static inline void vtime_user_exit(struct task_struct *tsk)
    32. 

  32. {
    33. 

  33. 	vtime_account_user(tsk);
    34. 

  34. }
    35. 

  35. extern void vtime_guest_enter(struct task_struct *tsk);
    36. 

  36. extern void vtime_guest_exit(struct task_struct *tsk);
    37. 

  37. extern void vtime_init_idle(struct task_struct *tsk);
    38. 

  38. #else
    39. 

  39. static inline void vtime_account_irq_exit(struct task_struct *tsk)
    40. 

  40. {
    41. 

  41. 	/* On hard|softirq exit we always account to hard|softirq cputime */
    42. 

  42. 	vtime_account_system(tsk);
    43. 

  43. }
    44. 

  44. static inline void vtime_user_enter(struct task_struct *tsk) { }
    45. 

  45. static inline void vtime_user_exit(struct task_struct *tsk) { }
    46. 

  46. static inline void vtime_guest_enter(struct task_struct *tsk) { }
    47. 

  47. static inline void vtime_guest_exit(struct task_struct *tsk) { }
    48. 

  48. static inline void vtime_init_idle(struct task_struct *tsk) { }
    49. 

  49. #endif
    50. 

  50. 

  51. #ifdef CONFIG_IRQ_TIME_ACCOUNTING
    52. 

  52. extern void irqtime_account_irq(struct task_struct *tsk);
    53. 

  53. #else
    54. 

  54. static inline void irqtime_account_irq(struct task_struct *tsk) { }
    55. 

  55. #endif
    56. 

  56. 

  57. static inline void account_irq_enter_time(struct task_struct *tsk)
    58. 

  58. {
    59. 

  59. 	vtime_account_irq_enter(tsk);
    60. 

  60. 	irqtime_account_irq(tsk);
    61. 

  61. }
    62. 

  62. 

  63. static inline void account_irq_exit_time(struct task_struct *tsk)
    64. 

  64. {
    65. 

  65. 	vtime_account_irq_exit(tsk);
    66. 

  66. 	irqtime_account_irq(tsk);
    67. 

  67. }
    68. 

  68. 

  69. #endif /* _LINUX_KERNEL_VTIME_H */
    70.