Re: [PATCH] virtio_blk: decrement index when blockdevice is removed

From: Jens Axboe
Date: Tue Apr 05 2011 - 01:08:58 EST


On 2011-04-05 06:49, Takuma Umeya wrote:
> When virtio block device is removed, index does not get decremented. When
> another virtio disk is attached it uses the next device letter to the
> one that is suppose to be available.
>
> Signed-off-by: Takuma Umeya <tumeya@xxxxxxxxxx>
>
> diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
> index 6ecf89c..730e7af 100644
> --- a/drivers/block/virtio_blk.c
> +++ b/drivers/block/virtio_blk.c
> @@ -489,6 +489,7 @@ static void __devexit virtblk_remove(struct virtio_device *vdev)
> mempool_destroy(vblk->pool);
> vdev->config->del_vqs(vdev);
> kfree(vblk);
> + index--;
> }
>
> static const struct virtio_device_id id_table[] = {

What happens when you delete a device that isn't the last one?

--
Jens Axboe

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