[ Upstream commit 8b894adb2b7e1d1e64b8954569c761eaf3d51ab5 ]
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@codewrec... Signed-off-by: Dominique Martinet dominique.martinet@cea.fr Signed-off-by: Sasha Levin sashal@kernel.org --- net/9p/trans_rdma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c index 9cc9b3a19ee7..9719bc4d9424 100644 --- a/net/9p/trans_rdma.c +++ b/net/9p/trans_rdma.c @@ -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 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req) 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);