include/linux/mm_event.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_MM_EVENT_H
   3 #define _LINUX_MM_EVENT_H
   4
   5 #include <linux/types.h>
   6 #include <linux/ktime.h>
   7
   8 enum mm_event_type {
   9         MM_MIN_FAULT = 0,
  10         MM_MAJ_FAULT,
  11         MM_COMPACTION,
  12         MM_RECLAIM,
  13         MM_SWP_FAULT,
  14         MM_TYPE_NUM,
  15 };
  16
  17 struct mm_event_task {
  18         unsigned int count;
  19         unsigned int max_lat;
  20         u64 accm_lat;
  21 } __attribute__ ((packed));
  22
  23 struct task_struct;
  24
  25 #ifdef CONFIG_MM_EVENT_STAT
  26 void mm_event_task_init(struct task_struct *tsk);
  27 void mm_event_start(ktime_t *time);
  28 void mm_event_end(enum mm_event_type event, ktime_t start);
  29 #else
  30 static inline void mm_event_task_init(struct task_struct *tsk) {}
  31 static inline void mm_event_start(ktime_t *time) {}
  32 static inline void mm_event_end(enum mm_event_type event, ktime_t start) {}
  33 #endif /* _LINUX_MM_EVENT_H */
  34 #endif