6f44993fe1
Usage of taskstats interface by delay accounting. Signed-off-by: Shailabh Nagar <nagar@us.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* taskstats_kern.h - kernel header for per-task statistics interface
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*
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* Copyright (C) Shailabh Nagar, IBM Corp. 2006
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* (C) Balbir Singh, IBM Corp. 2006
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*/
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#ifndef _LINUX_TASKSTATS_KERN_H
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#define _LINUX_TASKSTATS_KERN_H
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#include <linux/taskstats.h>
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#include <linux/sched.h>
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enum {
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TASKSTATS_MSG_UNICAST, /* send data only to requester */
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TASKSTATS_MSG_MULTICAST, /* send data to a group */
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};
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#ifdef CONFIG_TASKSTATS
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extern kmem_cache_t *taskstats_cache;
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extern struct mutex taskstats_exit_mutex;
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static inline void taskstats_exit_alloc(struct taskstats **ptidstats,
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struct taskstats **ptgidstats)
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{
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*ptidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
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*ptgidstats = kmem_cache_zalloc(taskstats_cache, SLAB_KERNEL);
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}
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static inline void taskstats_exit_free(struct taskstats *tidstats,
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struct taskstats *tgidstats)
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{
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if (tidstats)
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kmem_cache_free(taskstats_cache, tidstats);
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if (tgidstats)
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kmem_cache_free(taskstats_cache, tgidstats);
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}
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extern void taskstats_exit_send(struct task_struct *, struct taskstats *,
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struct taskstats *);
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extern void taskstats_init_early(void);
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#else
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static inline void taskstats_exit_alloc(struct taskstats **ptidstats,
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struct taskstats **ptgidstats)
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{}
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static inline void taskstats_exit_free(struct taskstats *ptidstats,
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struct taskstats *ptgidstats)
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{}
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static inline void taskstats_exit_send(struct task_struct *tsk,
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struct taskstats *tidstats,
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struct taskstats *tgidstats)
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{}
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static inline void taskstats_init_early(void)
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{}
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#endif /* CONFIG_TASKSTATS */
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#endif
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