include/linux/taskstats_kern.h

   1 /* taskstats_kern.h - kernel header for per-task statistics interface
   2  *
   3  * Copyright (C) Shailabh Nagar, IBM Corp. 2006
   4  *           (C) Balbir Singh,   IBM Corp. 2006
   5  */
   6
   7 #ifndef _LINUX_TASKSTATS_KERN_H
   8 #define _LINUX_TASKSTATS_KERN_H
   9
  10 #include <linux/taskstats.h>
  11 #include <linux/sched.h>
  12
  13 #ifdef CONFIG_TASKSTATS
  14 extern struct kmem_cache *taskstats_cache;
  15 extern struct mutex taskstats_exit_mutex;
  16
  17 static inline void taskstats_tgid_init(struct signal_struct *sig)
  18 {
  19         sig->stats = NULL;
  20 }
  21
  22 static inline void taskstats_tgid_free(struct signal_struct *sig)
  23 {
  24         if (sig->stats)
  25                 kmem_cache_free(taskstats_cache, sig->stats);
  26 }
  27
  28 extern void taskstats_exit(struct task_struct *, int group_dead);
  29 extern void taskstats_init_early(void);
  30 #else
  31 static inline void taskstats_exit(struct task_struct *tsk, int group_dead)
  32 {}
  33 static inline void taskstats_tgid_init(struct signal_struct *sig)
  34 {}
  35 static inline void taskstats_tgid_free(struct signal_struct *sig)
  36 {}
  37 static inline void taskstats_init_early(void)
  38 {}
  39 #endif /* CONFIG_TASKSTATS */
  40
  41 #endif
  42