projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c757249a SN |
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 | enum { | |
| 14 | TASKSTATS_MSG_UNICAST, /* send data only to requester */ | |
| 15 | TASKSTATS_MSG_MULTICAST, /* send data to a group */ | |
| 16 | }; | |
| 17 | ||
| 18 | #ifdef CONFIG_TASKSTATS | |
| 19 | extern kmem_cache_t *taskstats_cache; | |
| 6f44993f | 20 | extern struct mutex taskstats_exit_mutex; |
| c757249a SN |
21 | |
| 22 | static inline void taskstats_exit_alloc(struct taskstats **ptidstats, | |
| 23 | struct taskstats **ptgidstats) | |
| 24 | { | |
| 25 | *ptidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL); | |
| 26 | *ptgidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL); | |
| 27 | } | |
| 28 | ||
| 29 | static inline void taskstats_exit_free(struct taskstats *tidstats, | |
| 30 | struct taskstats *tgidstats) | |
| 31 | { | |
| 32 | if (tidstats) | |
| 33 | kmem_cache_free(taskstats_cache, tidstats); | |
| 34 | if (tgidstats) | |
| 35 | kmem_cache_free(taskstats_cache, tgidstats); | |
| 36 | } | |
| 37 | ||
| 38 | extern void taskstats_exit_send(struct task_struct *, struct taskstats *, | |
| 39 | struct taskstats *); | |
| 40 | extern void taskstats_init_early(void); | |
| 41 | ||
| 42 | #else | |
| 43 | static inline void taskstats_exit_alloc(struct taskstats **ptidstats, | |
| 44 | struct taskstats **ptgidstats) | |
| 45 | {} | |
| 46 | static inline void taskstats_exit_free(struct taskstats *ptidstats, | |
| 47 | struct taskstats *ptgidstats) | |
| 48 | {} | |
| 49 | static inline void taskstats_exit_send(struct task_struct *tsk, | |
| 50 | struct taskstats *tidstats, | |
| 51 | struct taskstats *tgidstats) | |
| 52 | {} | |
| 53 | static inline void taskstats_init_early(void) | |
| 54 | {} | |
| 55 | #endif /* CONFIG_TASKSTATS */ | |
| 56 | ||
| 57 | #endif | |
| 58 |