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[PATCH] NFS: use a constant value for TCP retransmit timeouts

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Implement a best practice: don't use exponential backoff when computing
 retransmit timeout values on TCP connections, but simply retransmit
 at regular intervals.

 This also fixes a bug introduced when xprt_reset_majortimeo() was added.

 Test-plan:
 Enable RPC debugging and watch timeout behavior on a NFS/TCP mount.

 Version: Thu, 11 Aug 2005 16:02:19 -0400

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
2005-08-11 16:25:14 -04:00
committed by Trond Myklebust
parent da35187801
commit eab5c084b8
2 changed files with 37 additions and 40 deletions
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4
net/sunrpc/xprt.c
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@ -1453,7 +1453,7 @@ xprt_default_timeout(struct rpc_timeout *to, int proto)
if (proto == IPPROTO_UDP)
xprt_set_timeout(to, 5, 5 * HZ);
else
xprt_set_timeout(to, 5, 60 * HZ);
xprt_set_timeout(to, 2, 60 * HZ);
}
/*
@ -1464,7 +1464,7 @@ xprt_set_timeout(struct rpc_timeout *to, unsigned int retr, unsigned long incr)
{
to->to_initval =
to->to_increment = incr;
to->to_maxval = incr * retr;
to->to_maxval = to->to_initval + (incr * retr);
to->to_retries = retr;
to->to_exponential = 0;
}