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/* 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;
extern struct mutex taskstats_exit_mutex;
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
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