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Commit 4ce6c04c authored by Chuck Lever's avatar Chuck Lever Committed by Anna Schumaker
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xprtrdma: Use ro_unmap_sync in xprt_rdma_send_request 



The "safe" version of ro_unmap is used here to avoid waiting
unnecessarily. However:

 - It is safe to wait. After all, we have to wait anyway when using
   FMR to register memory.

 - This case is rare: it occurs only after a reconnect.

By switching this call site to ro_unmap_sync, the final use of
ro_unmap_safe is removed.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent 8f66b1a5

net/sunrpc/xprtrdma/transport.c

+2 −1
Original line number Diff line number Diff line
@@ -728,7 +728,8 @@ xprt_rdma_send_request(struct rpc_task *task) 


	/* On retransmit, remove any previously registered chunks */

	if (unlikely(!list_empty(&req->rl_registered)))

		r_xprt->rx_ia.ri_ops->ro_unmap_safe(r_xprt, req, false);

		r_xprt->rx_ia.ri_ops->ro_unmap_sync(r_xprt,

						    &req->rl_registered);



	rc = rpcrdma_marshal_req(r_xprt, rqst);

	if (rc < 0)