Re: [PATCH] rbd: get rid of rbd_{get,put}_dev()

[Dan Mick <dan.mick@inktank.com>]

Reviewed-by: Dan Mick <dan.mick@inktank.com>

On 11/16/2012 07:43 AM, Alex Elder wrote:
> The functions rbd_get_dev() and rbd_put_dev() are trivial wrappers
> that add no values, and their existence suggests they may do more
> than what they do.
>
> Get rid of them.
>
> Signed-off-by: Alex Elder <elder@inktank.com>
> ---
>   drivers/block/rbd.c |   14 ++------------
>   1 file changed, 2 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
> index 9d9a2f3..f4b5a64 100644
> --- a/drivers/block/rbd.c
> +++ b/drivers/block/rbd.c
> @@ -337,16 +337,6 @@ void rbd_warn(struct rbd_device *rbd_dev, const
> char *fmt, ...)
>   #  define rbd_assert(expr)	((void) 0)
>   #endif /* !RBD_DEBUG */
>
> -static struct device *rbd_get_dev(struct rbd_device *rbd_dev)
> -{
> -	return get_device(&rbd_dev->dev);
> -}
> -
> -static void rbd_put_dev(struct rbd_device *rbd_dev)
> -{
> -	put_device(&rbd_dev->dev);
> -}
> -
>   static int rbd_dev_refresh(struct rbd_device *rbd_dev, u64 *hver);
>   static int rbd_dev_v2_refresh(struct rbd_device *rbd_dev, u64 *hver);
>
> @@ -357,7 +347,7 @@ static int rbd_open(struct block_device *bdev,
> fmode_t mode)
>   	if ((mode & FMODE_WRITE) && rbd_dev->mapping.read_only)
>   		return -EROFS;
>
> -	rbd_get_dev(rbd_dev);
> +	(void) get_device(&rbd_dev->dev);
>   	set_device_ro(bdev, rbd_dev->mapping.read_only);
>   	rbd_dev->open_count++;
>
> @@ -370,7 +360,7 @@ static int rbd_release(struct gendisk *disk, fmode_t
> mode)
>
>   	rbd_assert(rbd_dev->open_count > 0);
>   	rbd_dev->open_count--;
> -	rbd_put_dev(rbd_dev);
> +	put_device(&rbd_dev->dev);
>
>   	return 0;
>   }
>