forked from Minki/linux
xprtrdma: Fix helper that drains the transport
We want to drain only the RQ first. Otherwise the transport can
deadlock on ->close if there are outstanding Send completions.
Fixes: 6d2d0ee27c
("xprtrdma: Replace rpcrdma_receive_wq ... ")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: stable@vger.kernel.org # v5.0+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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@ -90,7 +90,7 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt)
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/* Flush Receives, then wait for deferred Reply work
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/* Flush Receives, then wait for deferred Reply work
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* to complete.
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* to complete.
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*/
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*/
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ib_drain_qp(ia->ri_id->qp);
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ib_drain_rq(ia->ri_id->qp);
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drain_workqueue(buf->rb_completion_wq);
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drain_workqueue(buf->rb_completion_wq);
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/* Deferred Reply processing might have scheduled
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/* Deferred Reply processing might have scheduled
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