tree 4fbaa255e9e7a85f41eacb7cf1214dc44a90bcea
parent 43118c29dea2b23798bd42a147015cceee7fa885
author Chuck Lever <cel@netapp.com> 1125012350 -0700
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1127493516 -0400

[PATCH] RPC: add API to set transport-specific timeouts

 Prepare the way to remove the "xprt->nocong" variable by adding a callout
 to the RPC client transport switch API to handle setting RPC retransmit
 timeouts.

 Add a pair of generic helper functions that provide the ability to set a
 simple fixed timeout, or to set a timeout based on the state of a round-
 trip estimator.

 Test-plan:
 Use WAN simulation to cause sporadic bursty packet loss.  Look for significant
 regression in performance or client stability.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>