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xprtrdma: Trace marshaling failures

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Record an event when rpcrdma_marshal_req returns a non-zero return
value to help track down why an xprt close might have occurred.

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
2019-04-24 09:39:48 -04:00
committed by Anna Schumaker
parent 4ba02e8d0e
commit 17e4c443c0
2 changed files with 28 additions and 0 deletions
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net/sunrpc/xprtrdma/rpc_rdma.c
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@@ -875,6 +875,7 @@ rpcrdma_marshal_req(struct rpcrdma_xprt *r_xprt, struct rpc_rqst *rqst)
return 0;
out_err:
trace_xprtrdma_marshal_failed(rqst, ret);
switch (ret) {
case -EAGAIN:
xprt_wait_for_buffer_space(rqst->rq_xprt);