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
)
29 static inline void taskstats_tgid_alloc(struct task_struct
*tsk
)
31 struct signal_struct
*sig
= tsk
->signal
;
32 struct taskstats
*stats
;
34 if (sig
->stats
!= NULL
)
37 /* No problem if kmem_cache_zalloc() fails */
38 stats
= kmem_cache_zalloc(taskstats_cache
, SLAB_KERNEL
);
40 spin_lock_irq(&tsk
->sighand
->siglock
);
45 spin_unlock_irq(&tsk
->sighand
->siglock
);
48 kmem_cache_free(taskstats_cache
, stats
);
51 static inline void taskstats_tgid_free(struct signal_struct
*sig
)
54 kmem_cache_free(taskstats_cache
, sig
->stats
);
57 extern void taskstats_exit_alloc(struct taskstats
**, unsigned int *);
58 extern void taskstats_exit_send(struct task_struct
*, struct taskstats
*, int, unsigned int);
59 extern void taskstats_init_early(void);
61 static inline void taskstats_exit_alloc(struct taskstats
**ptidstats
, unsigned int *mycpu
)
63 static inline void taskstats_exit_free(struct taskstats
*ptidstats
)
65 static inline void taskstats_exit_send(struct task_struct
*tsk
,
66 struct taskstats
*tidstats
,
67 int group_dead
, unsigned int cpu
)
69 static inline void taskstats_tgid_init(struct signal_struct
*sig
)
71 static inline void taskstats_tgid_alloc(struct task_struct
*tsk
)
73 static inline void taskstats_tgid_free(struct signal_struct
*sig
)
75 static inline void taskstats_init_early(void)
77 #endif /* CONFIG_TASKSTATS */