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SUNRPC: call_connect_status should handle -EPROTO

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The xprtrdma connect logic can return -EPROTO if the underlying
device or network path does not support RDMA. This can happen
after a device removal/insertion.

- When SOFTCONN is set, EPROTO is a permanent error.

- When SOFTCONN is not set, EPROTO is treated as a temporary error.

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 2019-12-23 10:28:44 -05:00 committed by Anna Schumaker
parent 2bb50aabb6
commit b8457606d9
1 changed files with 1 additions and 0 deletions
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net/sunrpc/clnt.c
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@ -2130,6 +2130,7 @@ call_connect_status(struct rpc_task *task)
case -ENETUNREACH: case -ENETUNREACH:
case -EHOSTUNREACH: case -EHOSTUNREACH:
case -EPIPE: case -EPIPE:
case -EPROTO:
xprt_conditional_disconnect(task->tk_rqstp->rq_xprt, xprt_conditional_disconnect(task->tk_rqstp->rq_xprt,
task->tk_rqstp->rq_connect_cookie); task->tk_rqstp->rq_connect_cookie);
if (RPC_IS_SOFTCONN(task)) if (RPC_IS_SOFTCONN(task))