Re: [PATCH] blk-iocost: fix shift-out-of-bounds in iocg_hick_delay()

[Tejun Heo]

On Sat, Nov 26, 2022 at 08:14:58PM +0800, Li Jinlin wrote:
>  	if (iocg->delay)
> -		delay = iocg->delay >> div64_u64(tdelta, USEC_PER_SEC);
> +		delay = iocg->delay >> min(div64_u64(tdelta, USEC_PER_SEC), 63);

Let's just set delay to 0 if the shift is too big.

Thanks.

-- 
tejun