diff options
Diffstat (limited to 'include/linux/taskstats_kern.h')
| -rw-r--r-- | include/linux/taskstats_kern.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h new file mode 100644 index 000000000000..bd0ecb969c26 --- /dev/null +++ b/include/linux/taskstats_kern.h @@ -0,0 +1,57 @@ +/* taskstats_kern.h - kernel header for per-task statistics interface + * + * Copyright (C) Shailabh Nagar, IBM Corp. 2006 + * (C) Balbir Singh, IBM Corp. 2006 + */ + +#ifndef _LINUX_TASKSTATS_KERN_H +#define _LINUX_TASKSTATS_KERN_H + +#include <linux/taskstats.h> +#include <linux/sched.h> + +enum { + TASKSTATS_MSG_UNICAST, /* send data only to requester */ + TASKSTATS_MSG_MULTICAST, /* send data to a group */ +}; + +#ifdef CONFIG_TASKSTATS +extern kmem_cache_t *taskstats_cache; + +static inline void taskstats_exit_alloc(struct taskstats **ptidstats, + struct taskstats **ptgidstats) +{ + *ptidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL); + *ptgidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL); +} + +static inline void taskstats_exit_free(struct taskstats *tidstats, + struct taskstats *tgidstats) +{ + if (tidstats) + kmem_cache_free(taskstats_cache, tidstats); + if (tgidstats) + kmem_cache_free(taskstats_cache, tgidstats); +} + +extern void taskstats_exit_send(struct task_struct *, struct taskstats *, + struct taskstats *); +extern void taskstats_init_early(void); + +#else +static inline void taskstats_exit_alloc(struct taskstats **ptidstats, + struct taskstats **ptgidstats) +{} +static inline void taskstats_exit_free(struct taskstats *ptidstats, + struct taskstats *ptgidstats) +{} +static inline void taskstats_exit_send(struct task_struct *tsk, + struct taskstats *tidstats, + struct taskstats *tgidstats) +{} +static inline void taskstats_init_early(void) +{} +#endif /* CONFIG_TASKSTATS */ + +#endif + |