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SUNRPC: Avoid holding locks across the XDR encoding of the RPC message

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Currently, we grab the socket bit lock before we allow the message
to be XDR encoded. That significantly slows down the transmission
rate, since we serialise on a potentially blocking operation.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2018-08-14 13:58:34 -04:00
parent 7ebbbc6e7b
commit 3a03818fbe
1 changed files with 3 additions and 3 deletions
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6
net/sunrpc/clnt.c
View file

@ -1949,9 +1949,6 @@ call_transmit(struct rpc_task *task)
task->tk_action = call_status;
if (task->tk_status < 0)
return;
if (!xprt_prepare_transmit(task))
return;
task->tk_action = call_transmit_status;
/* Encode here so that rpcsec_gss can use correct sequence number. */
if (rpc_task_need_encode(task)) {
rpc_xdr_encode(task);
@ -1965,6 +1962,9 @@ call_transmit(struct rpc_task *task)
return;
}
}
if (!xprt_prepare_transmit(task))
return;
task->tk_action = call_transmit_status;
xprt_transmit(task);
if (task->tk_status < 0)
return;