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Commit 2fc464e2 authored by Max Gurtovoy's avatar Max Gurtovoy Committed by Christoph Hellwig
Browse files

nvmet-rdma: add unlikely check in the fast path 



ib_post_send operation should succeed unless something unusual
happened to the ib device.

Signed-off-by: default avatarMax Gurtovoy <maxg@mellanox.com>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 0d5ee2b2

drivers/nvme/target/rdma.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -546,7 +546,7 @@ static void nvmet_rdma_queue_response(struct nvmet_req *req) 
		rsp->send_sge.addr, rsp->send_sge.length,

		rsp->send_sge.addr, rsp->send_sge.length,

		DMA_TO_DEVICE);

		DMA_TO_DEVICE);





	if (ib_post_send(cm_id->qp, first_wr, &bad_wr)) {

	if (unlikely(ib_post_send(cm_id->qp, first_wr, &bad_wr))) {

		pr_err("sending cmd response failed\n");

		pr_err("sending cmd response failed\n");

		nvmet_rdma_release_rsp(rsp);

		nvmet_rdma_release_rsp(rsp);

	}

	}