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xprtrdma: Eliminate unnecessary lock cycle in xprt_rdma_send_request

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The rpcrdma_req is not shared yet, and its associated Send hasn't
been posted, thus RMW should be safe. There's no need for the
expense of a lock cycle here.

Fixes: 0ba6f37012 ("xprtrdma: Refactor rpcrdma_deferred_completion")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2017-12-14 20:56:18 -05:00 committed by Anna Schumaker
parent d698c4a02e
commit 42b9f5c58a
1 changed files with 1 additions and 1 deletions
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2
net/sunrpc/xprtrdma/transport.c
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@ -735,7 +735,7 @@ xprt_rdma_send_request(struct rpc_task *task)
goto drop_connection;
req->rl_connect_cookie = xprt->connect_cookie;
set_bit(RPCRDMA_REQ_F_PENDING, &req->rl_flags);
__set_bit(RPCRDMA_REQ_F_PENDING, &req->rl_flags);
if (rpcrdma_ep_post(&r_xprt->rx_ia, &r_xprt->rx_ep, req))
goto drop_connection;