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[PATCH] RPC: expose API for serializing access to RPC transports

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The next method we abstract is the one that releases a transport,
 allowing another task to have access to the transport.

 Again, one generic version of this is provided for transports that
 don't need the RPC client to perform congestion control, and one
 version is for transports that can use the original Van Jacobson
 implementation in xprt.c.

 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 16:25:51 -07:00
committed by Trond Myklebust
parent 12a804698b
commit 49e9a89086
3 changed files with 68 additions and 14 deletions
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2
net/sunrpc/xprtsock.c
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@@ -1046,6 +1046,7 @@ static void xs_connect(struct rpc_task *task)
static struct rpc_xprt_ops xs_udp_ops = {
.set_buffer_size = xs_udp_set_buffer_size,
.reserve_xprt = xprt_reserve_xprt_cong,
.release_xprt = xprt_release_xprt_cong,
.connect = xs_connect,
.send_request = xs_udp_send_request,
.set_retrans_timeout = xprt_set_retrans_timeout_rtt,
@@ -1056,6 +1057,7 @@ static struct rpc_xprt_ops xs_udp_ops = {
static struct rpc_xprt_ops xs_tcp_ops = {
.set_buffer_size = xs_tcp_set_buffer_size,
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xprt_release_xprt,
.connect = xs_connect,
.send_request = xs_tcp_send_request,
.set_retrans_timeout = xprt_set_retrans_timeout_def,