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Commit a314f274 authored by Jim Garlick's avatar Jim Garlick Committed by Eric Van Hensbergen
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net/9p: don't allow Tflush to be interrupted 



When a signal is received while sending a Tflush, the client,
which has recursed into p9_client_rpc() while sending another request,
should wait for Rflush as long as the transport is still up.

Signed-off-by: default avatarJim Garlick <garlick@llnl.gov>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent 3c761ea0

net/9p/client.c

+8 −0
Original line number Diff line number Diff line
@@ -740,10 +740,18 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...) 
			c->status = Disconnected;

		goto reterr;

	}

again:

	/* Wait for the response */

	err = wait_event_interruptible(*req->wq,

				       req->status >= REQ_STATUS_RCVD);



	if ((err == -ERESTARTSYS) && (c->status == Connected)

				  && (type == P9_TFLUSH)) {

		sigpending = 1;

		clear_thread_flag(TIF_SIGPENDING);

		goto again;

	}



	if (req->status == REQ_STATUS_ERROR) {

		p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);

		err = req->t_err;