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 stats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
39 spin_lock_irqsave(&sig->stats_lock, flags);
44 spin_unlock_irqrestore(&sig->stats_lock, flags);
47 kmem_cache_free(taskstats_cache, stats);
50 static inline void taskstats_tgid_free(struct signal_struct *sig)
52 struct taskstats *stats = NULL;
55 spin_lock_irqsave(&sig->stats_lock, flags);
60 spin_unlock_irqrestore(&sig->stats_lock, flags);
62 kmem_cache_free(taskstats_cache, stats);
65 extern void taskstats_exit_alloc(struct taskstats **, unsigned int *);
66 extern void taskstats_exit_send(struct task_struct *, struct taskstats *, int, unsigned int);
67 extern void taskstats_init_early(void);
68 extern void taskstats_tgid_alloc(struct signal_struct *);
70 static inline void taskstats_exit_alloc(struct taskstats **ptidstats, unsigned int *mycpu)
72 static inline void taskstats_exit_free(struct taskstats *ptidstats)
74 static inline void taskstats_exit_send(struct task_struct *tsk,
75 struct taskstats *tidstats,
76 int group_dead, unsigned int cpu)
78 static inline void taskstats_tgid_init(struct signal_struct *sig)
80 static inline void taskstats_tgid_alloc(struct signal_struct *sig)
82 static inline void taskstats_tgid_free(struct signal_struct *sig)
84 static inline void taskstats_init_early(void)
86 #endif /* CONFIG_TASKSTATS */