diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index be335eed329d..54957295a631 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -114,9 +114,9 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt) rpcrdma_ep_put(ep); } -/* Ensure xprt_force_disconnect() is invoked exactly once when a - * connection is closed or lost. (The important thing is it needs - * to be invoked "at least" once). +/* Ensure xprt_force_disconnect() is invoked at most once for an + * unexpected endpoint failure. Local endpoint teardown closes this + * gate before it can generate CM events and flushed completions. */ void rpcrdma_force_disconnect(struct rpcrdma_ep *ep) { @@ -587,6 +587,9 @@ void rpcrdma_xprt_disconnect(struct rpcrdma_xprt *r_xprt) if (!ep) return; + /* Prevent teardown-generated events from requesting another close. */ + atomic_xchg(&ep->re_force_disconnect, 1); + id = ep->re_id; rc = rdma_disconnect(id); trace_xprtrdma_disconnect(r_xprt, rc);