9p/rdma: do not disconnect on down_interruptible EAGAIN (8b894adb) · Commits · 戴 / test

9p/rdma would sometimes drop the connection and display errors in recv_done when the user does ^C. The errors were caused by recv buffers that were posted at the time of disconnect, and we just do not want to disconnect when down_interruptible is... interrupted. Link: http://lkml.kernel.org/r/1535625307-18019-1-git-send-email-asmadeus@codewreck.org Signed-off-by:

Dominique Martinet <dominique.martinet@cea.fr>

net/9p/trans_rdma.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -477,7 +477,7 @@ static int rdma_request(struct p9_client client, struct p9_req_t req)

		err = post_recv(client, rpl_context);
		if (err) {
		p9_debug(P9_DEBUG_FCALL, "POST RECV failed\n");
		p9_debug(P9_DEBUG_ERROR, "POST RECV failed: %d\n", err);
		goto recv_error;
		}
		/* remove posted receive buffer from request structure */
		@@ -546,7 +546,7 @@ dont_need_post_recv:
		recv_error:
		kfree(rpl_context);
		spin_lock_irqsave(&rdma->req_lock, flags);
		if (rdma->state < P9_RDMA_CLOSING) {
		if (err != -EINTR && rdma->state < P9_RDMA_CLOSING) {
		rdma->state = P9_RDMA_CLOSING;
		spin_unlock_irqrestore(&rdma->req_lock, flags);
		rdma_disconnect(rdma->cm_id);

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