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SUNRPC: RPC metrics and RTT estimator should use same RTT value

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Compute an RPC request's RTT once, and use that value both for reporting
RPC metrics, and for adjusting the RTT context used by the RPC client's RTT
estimator algorithm.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever
2010-05-07 13:34:27 -04:00
committed by Trond Myklebust
parent 9bc4e3ca46
commit bbc72cea58
3 changed files with 4 additions and 11 deletions
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include/linux/sunrpc/xprt.h
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@@ -293,7 +293,6 @@ void xprt_set_retrans_timeout_rtt(struct rpc_task *task);
void xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status);
void xprt_wait_for_buffer_space(struct rpc_task *task, rpc_action action);
void xprt_write_space(struct rpc_xprt *xprt);
void xprt_update_rtt(struct rpc_task *task);
void xprt_adjust_cwnd(struct rpc_task *task, int result);
struct rpc_rqst * xprt_lookup_rqst(struct rpc_xprt *xprt, __be32 xid);
void xprt_complete_rqst(struct rpc_task *task, int copied);