From: Sagi Grimberg <sagi@grimberg.me>
Date: Wed, 11 Oct 2017 12:29:10 +0000 (+0300)
Subject: nvme-rdma: Don't local invalidate if the queue is not live
X-Git-Tag: v4.19~2212^2~86^2~38
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=60a518863368c7e124cd8411c2481d0938f53e08;p=platform%2Fkernel%2Flinux-rpi.git

nvme-rdma: Don't local invalidate if the queue is not live

No chance for the local invalidate to succeed if the queue-pair
is in error state. Most likely the target will do a remote
invalidation of our mr so not a big loss on the test_bit.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 95837c5317b4..a58dd0c77a29 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1052,7 +1052,7 @@ static void nvme_rdma_unmap_data(struct nvme_rdma_queue *queue,
 	if (!blk_rq_bytes(rq))
 		return;
 
-	if (req->mr->need_inval) {
+	if (req->mr->need_inval && test_bit(NVME_RDMA_Q_LIVE, &req->queue->flags)) {
 		res = nvme_rdma_inv_rkey(queue, req);
 		if (unlikely(res < 0)) {
 			dev_err(ctrl->ctrl.device,