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svcrdma: Fix double sync of transport header buffer

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Performance optimization: Avoid syncing the transport buffer twice
when Reply buffer pull-up is necessary.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever
2020-03-03 11:08:05 -05:00
parent 6fd5034db4
commit aee4b74a3f
4 changed files with 28 additions and 44 deletions
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4
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
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@@ -735,9 +735,9 @@ static void svc_rdma_send_error(struct svcxprt_rdma *xprt,
trace_svcrdma_err_chunk(*rdma_argp);
}
svc_rdma_sync_reply_hdr(xprt, ctxt, ctxt->sc_hdrbuf.len);
ctxt->sc_send_wr.num_sge = 1;
ctxt->sc_send_wr.opcode = IB_WR_SEND;
ctxt->sc_sges[0].length = ctxt->sc_hdrbuf.len;
ret = svc_rdma_send(xprt, &ctxt->sc_send_wr);
if (ret)
goto put_ctxt;