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[PATCH] RPC: add generic interface for adjusting the congestion window

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A new interface that allows transports to adjust their congestion window
 using the Van Jacobson implementation in xprt.c is provided.

 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>
This commit is contained in:
Chuck Lever
2005-08-25 16:25:52 -07:00
committed by Trond Myklebust
parent 46c0ee8bc4
commit 1570c1e41e
3 changed files with 31 additions and 47 deletions
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3
include/linux/sunrpc/xprt.h
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@@ -258,9 +258,10 @@ 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);
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, u32 xid);
void xprt_complete_rqst(struct rpc_xprt *xprt, struct rpc_rqst *req, int copied);
void xprt_complete_rqst(struct rpc_task *task, int copied);
void xprt_disconnect(struct rpc_xprt *xprt);
/*