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
