mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 10:50:53 +07:00
60063497a9
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/*
|
|
* 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 <linux/atomic.h>
|
|
|
|
struct rpc_rtt {
|
|
unsigned long timeo; /* default timeout value */
|
|
unsigned long srtt[5]; /* smoothed round trip time << 3 */
|
|
unsigned long sdrtt[5]; /* smoothed medium deviation of RTT */
|
|
int ntimeouts[5]; /* Number of timeouts for the last request */
|
|
};
|
|
|
|
|
|
extern void rpc_init_rtt(struct rpc_rtt *rt, unsigned long timeo);
|
|
extern void rpc_update_rtt(struct rpc_rtt *rt, unsigned timer, long m);
|
|
extern unsigned long rpc_calc_rto(struct rpc_rtt *rt, unsigned timer);
|
|
|
|
static inline void rpc_set_timeo(struct rpc_rtt *rt, int timer, int ntimeo)
|
|
{
|
|
int *t;
|
|
if (!timer)
|
|
return;
|
|
t = &rt->ntimeouts[timer-1];
|
|
if (ntimeo < *t) {
|
|
if (*t > 0)
|
|
(*t)--;
|
|
} else {
|
|
if (ntimeo > 8)
|
|
ntimeo = 8;
|
|
*t = ntimeo;
|
|
}
|
|
}
|
|
|
|
static inline int rpc_ntimeo(struct rpc_rtt *rt, int timer)
|
|
{
|
|
if (!timer)
|
|
return 0;
|
|
return rt->ntimeouts[timer-1];
|
|
}
|
|
|
|
#endif /* _LINUX_SUNRPC_TIMER_H */
|