linux-kernel - [PATCH 4.20 096/117] nvmet-rdma: Add unlikely for response allocated check

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Date:   Tue, 29 Jan 2019 12:35:47 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Israel Rukshin <israelr@...lanox.com>,
        Sagi Grimberg <sagi@...mberg.me>,
        Max Gurtovoy <maxg@...lanox.com>,
        Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        Raju Rangoju <rajur@...lsio.com>
Subject: [PATCH 4.20 096/117] nvmet-rdma: Add unlikely for response allocated check

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Israel Rukshin <israelr@...lanox.com>

commit ad1f824948e4ed886529219cf7cd717d078c630d upstream.

Signed-off-by: Israel Rukshin <israelr@...lanox.com>
Reviewed-by: Sagi Grimberg <sagi@...mberg.me>
Reviewed-by: Max Gurtovoy <maxg@...lanox.com>
Signed-off-by: Christoph Hellwig <hch@....de>
Signed-off-by: Jens Axboe <axboe@...nel.dk>
Cc: Raju  Rangoju <rajur@...lsio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/nvme/target/rdma.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -196,7 +196,7 @@ nvmet_rdma_put_rsp(struct nvmet_rdma_rsp
 {
 	unsigned long flags;
 
-	if (rsp->allocated) {
+	if (unlikely(rsp->allocated)) {
 		kfree(rsp);
 		return;
 	}