virtio-blk: remove a spurious call to revalidate_disk_size

revalidate_disk_size just updates the block device size from the disk
size.  Thus calling it from virtblk_update_cache_mode doesn't actually
do anything.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 3e812b4..145606d 100644 (file)
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -598,7 +598,6 @@ static void virtblk_update_cache_mode(struct virtio_device *vdev)
        struct virtio_blk *vblk = vdev->priv;
 
        blk_queue_write_cache(vblk->disk->queue, writeback, false);
-       revalidate_disk_size(vblk->disk, true);
 }
 
 static const char *const virtblk_cache_types[] = {