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 #include <net/genetlink.h>
  13
  14 #ifdef CONFIG_TASKSTATS
  15 extern struct kmem_cache *taskstats_cache;
  16 extern struct mutex taskstats_exit_mutex;
  17
  18 static inline void taskstats_tgid_init(struct signal_struct *sig)
  19 {
  20         sig->stats = NULL;
  21 }
  22
  23 static inline void taskstats_tgid_free(struct signal_struct *sig)
  24 {
  25         if (sig->stats)
  26                 kmem_cache_free(taskstats_cache, sig->stats);
  27 }
  28
  29 extern void taskstats_exit(struct task_struct *, int group_dead);
  30 extern void taskstats_init_early(void);
  31 #else
  32 static inline void taskstats_exit(struct task_struct *tsk, int group_dead)
  33 {}
  34 static inline void taskstats_tgid_init(struct signal_struct *sig)
  35 {}
  36 static inline void taskstats_tgid_free(struct signal_struct *sig)
  37 {}
  38 static inline void taskstats_init_early(void)
  39 {}
  40 #endif /* CONFIG_TASKSTATS */
  41
  42 #endif
  43