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nvmet-rdma: add unlikely check in the fast path

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

Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Max Gurtovoy 2018-06-27 14:58:02 +03:00 committed by Christoph Hellwig
parent 0d5ee2b2ab
commit 2fc464e216
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/target/rdma.c
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@ -546,7 +546,7 @@ static void nvmet_rdma_queue_response(struct nvmet_req *req)
rsp->send_sge.addr, rsp->send_sge.length,
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");
nvmet_rdma_release_rsp(rsp);
}