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/*
* linux/include/linux/sunrpc/timer.h
*
* Declarations for the RPC transport timer.
*
* Copyright (C) 2002 Trond Myklebust <trond.myklebust@fys.uio.no>
*/
#ifndef _LINUX_SUNRPC_TIMER_H
#define _LINUX_SUNRPC_TIMER_H
#include <asm/atomic.h>
struct rpc_rtt {
long timeo; /* default timeout value */
long srtt[5]; /* smoothed round trip time << 3 */
long sdrtt[5]; /* soothed medium deviation of RTT */
atomic_t ntimeouts; /* Global count of the number of timeouts */
};
extern void rpc_init_rtt(struct rpc_rtt *rt, long timeo);
extern void rpc_update_rtt(struct rpc_rtt *rt, int timer, long m);
extern long rpc_calc_rto(struct rpc_rtt *rt, int timer);
static inline void rpc_inc_timeo(struct rpc_rtt *rt)
{
atomic_inc(&rt->ntimeouts);
}
static inline void rpc_clear_timeo(struct rpc_rtt *rt)
{
atomic_set(&rt->ntimeouts, 0);
}
static inline int rpc_ntimeo(struct rpc_rtt *rt)
{
return atomic_read(&rt->ntimeouts);
}
#endif /* _LINUX_SUNRPC_TIMER_H */
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