Re: [PATCH] blk-throttle: don't check whether or not lower limit is valid if CONFIG_BLK_DEV_THROTTLING_LOW is off

[Jens Axboe]

On 11/25/20 8:18 PM, Yu Kuai wrote:
> blk_throtl_update_limit_valid() will search for descendants to see if
> 'LIMIT_LOW' of bps/iops and READ/WRITE is nonzero. However, they're always
> zero if CONFIG_BLK_DEV_THROTTLING_LOW is not set, furthermore, a lot of
> time will be wasted to iterate descendants.
> 
> Thus do nothing in blk_throtl_update_limit_valid() in such situation.

Applied, thanks.

-- 
Jens Axboe