nvmet-rdma: Add unlikely for response allocated check

commit ad1f824948e4ed886529219cf7cd717d078c630d upstream.
Signed-off-by: NIsrael Rukshin <israelr@mellanox.com>
Reviewed-by: NSagi Grimberg <sagi@grimberg.me>
Reviewed-by: NMax Gurtovoy <maxg@mellanox.com>
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Cc: Raju  Rangoju <rajur@chelsio.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/nvme/target/rdma.c

@@ -196,7 +196,7 @@ nvmet_rdma_put_rsp(struct nvmet_rdma_rsp *rsp)
 {
 	unsigned long flags;
 
-	if (rsp->allocated) {
+	if (unlikely(rsp->allocated)) {
 		kfree(rsp);
 		return;
 	}