1 /* taskstats_kern.h - kernel header for per-task statistics interface
3 * Copyright (C) Shailabh Nagar, IBM Corp. 2006
4 * (C) Balbir Singh, IBM Corp. 2006
7 #ifndef _LINUX_TASKSTATS_KERN_H
8 #define _LINUX_TASKSTATS_KERN_H
10 #include <linux/taskstats.h>
11 #include <linux/sched.h>
12 #include <net/genetlink.h>
14 #ifdef CONFIG_TASKSTATS
15 extern kmem_cache_t *taskstats_cache;
16 extern struct mutex taskstats_exit_mutex;
18 static inline void taskstats_exit_free(struct taskstats *tidstats)
21 kmem_cache_free(taskstats_cache, tidstats);
24 static inline void taskstats_tgid_init(struct signal_struct *sig)
26 spin_lock_init(&sig->stats_lock);
30 static inline void taskstats_tgid_alloc(struct signal_struct *sig)
32 struct taskstats *stats;
35 if (sig->stats != NULL)
38 stats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
42 spin_lock_irqsave(&sig->stats_lock, flags);
47 spin_unlock_irqrestore(&sig->stats_lock, flags);
50 kmem_cache_free(taskstats_cache, stats);
53 static inline void taskstats_tgid_free(struct signal_struct *sig)
56 kmem_cache_free(taskstats_cache, sig->stats);
59 extern void taskstats_exit_alloc(struct taskstats **, unsigned int *);
60 extern void taskstats_exit_send(struct task_struct *, struct taskstats *, int, unsigned int);
61 extern void taskstats_init_early(void);
62 extern void taskstats_tgid_alloc(struct signal_struct *);
64 static inline void taskstats_exit_alloc(struct taskstats **ptidstats, unsigned int *mycpu)
66 static inline void taskstats_exit_free(struct taskstats *ptidstats)
68 static inline void taskstats_exit_send(struct task_struct *tsk,
69 struct taskstats *tidstats,
70 int group_dead, unsigned int cpu)
72 static inline void taskstats_tgid_init(struct signal_struct *sig)
74 static inline void taskstats_tgid_alloc(struct signal_struct *sig)
76 static inline void taskstats_tgid_free(struct signal_struct *sig)
78 static inline void taskstats_init_early(void)
80 #endif /* CONFIG_TASKSTATS */