linux-sg2042/include/linux/latency.h

26 lines
686 B
C

/*
* latency.h: Explicit system-wide latency-expectation infrastructure
*
* (C) Copyright 2006 Intel Corporation
* Author: Arjan van de Ven <arjan@linux.intel.com>
*
*/
#ifndef _INCLUDE_GUARD_LATENCY_H_
#define _INCLUDE_GUARD_LATENCY_H_
#include <linux/notifier.h>
void set_acceptable_latency(char *identifier, int usecs);
void modify_acceptable_latency(char *identifier, int usecs);
void remove_acceptable_latency(char *identifier);
void synchronize_acceptable_latency(void);
int system_latency_constraint(void);
int register_latency_notifier(struct notifier_block * nb);
int unregister_latency_notifier(struct notifier_block * nb);
#define INFINITE_LATENCY 1000000
#endif