virtio-blk: remove unneeded "likely" statements

Usually we use "likely/unlikely" to optimize the fast path. Remove
redundant "likely/unlikely" statements in the control path to simplify
the code and make it easier to read.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Link: https://lore.kernel.org/r/20210905085717.7427-1-mgurtovoy@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Chaitanya Kulkarni <ckulkarnilinux@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index afb37aa..e574fbf 100644 (file)
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -765,7 +765,7 @@ static int virtblk_probe(struct virtio_device *vdev)
                goto out_free_vblk;
 
        /* Default queue sizing is to fill the ring. */
-       if (likely(!virtblk_queue_depth)) {
+       if (!virtblk_queue_depth) {
                queue_depth = vblk->vqs[0].vq->num_free;
                /* ... but without indirect descs, we use 2 descs per req */
                if (!virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC))
@@ -839,7 +839,7 @@ static int virtblk_probe(struct virtio_device *vdev)
        else
                blk_size = queue_logical_block_size(q);
 
-       if (unlikely(blk_size < SECTOR_SIZE || blk_size > PAGE_SIZE)) {
+       if (blk_size < SECTOR_SIZE || blk_size > PAGE_SIZE) {
                dev_err(&vdev->dev,
                        "block size is changed unexpectedly, now is %u\n",
                        blk_size);