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Revision 1.1, Tue Feb 26 16:44:40 2008 UTC (9 years, 8 months ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD 

Merge up to 2.6.25-rc3
Merge of 2.6.x-xfs-melb:linux:30555a by kenmcd.

/*
 * latencytop.h: Infrastructure for displaying latency
 *
 * (C) Copyright 2008 Intel Corporation
 * Author: Arjan van de Ven <arjan@linux.intel.com>
 *
 */

#ifndef _INCLUDE_GUARD_LATENCYTOP_H_
#define _INCLUDE_GUARD_LATENCYTOP_H_

#ifdef CONFIG_LATENCYTOP

#define LT_SAVECOUNT		32
#define LT_BACKTRACEDEPTH	12

struct latency_record {
	unsigned long	backtrace[LT_BACKTRACEDEPTH];
	unsigned int	count;
	unsigned long	time;
	unsigned long	max;
};


struct task_struct;

void account_scheduler_latency(struct task_struct *task, int usecs, int inter);

void clear_all_latency_tracing(struct task_struct *p);

#else

static inline void
account_scheduler_latency(struct task_struct *task, int usecs, int inter)
{
}

static inline void clear_all_latency_tracing(struct task_struct *p)
{
}

#endif

#endif