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authorMax Gurtovoy <maxg@mellanox.com>2018-06-27 14:58:02 +0300
committerChristoph Hellwig <hch@lst.de>2018-07-23 09:35:16 +0200
commit2fc464e2162c2b2f7faf7404fa9c35d1cf70aa00 (patch)
treecf76b124b108cf16c01fa89b0eec113ff6b851ac /drivers/nvme/target
parent0d5ee2b2ab4f6776c361bc975c2323bc8b5cf349 (diff)
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: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/target')
-rw-r--r--drivers/nvme/target/rdma.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 2106ae2ec177..4ca09456bbbb 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -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);
}