[PATCH 4/5] mm: don't automatically unregister bdis

[Jan Kara]

On Thu 21-10-21 14:44:40, Christoph Hellwig wrote:
> All BDI users now unregister explicitly.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack at suse.cz>

								Honza

> ---
>  mm/backing-dev.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/mm/backing-dev.c b/mm/backing-dev.c
> index 8a46a0a4b72fa..768e9ae489f66 100644
> --- a/mm/backing-dev.c
> +++ b/mm/backing-dev.c
> @@ -965,8 +965,7 @@ static void release_bdi(struct kref *ref)
>  	struct backing_dev_info *bdi =
>  			container_of(ref, struct backing_dev_info, refcnt);
>  
> -	if (test_bit(WB_registered, &bdi->wb.state))
> -		bdi_unregister(bdi);
> +	WARN_ON_ONCE(test_bit(WB_registered, &bdi->wb.state));
>  	WARN_ON_ONCE(bdi->dev);
>  	wb_exit(&bdi->wb);
>  	kfree(bdi);
> -- 
> 2.30.2
> 
-- 
Jan Kara <jack at suse.com>
SUSE Labs, CR