Messages in this thread | | | Date | Wed, 27 Jul 2022 08:28:38 -1000 | From | Tejun Heo <> | Subject | Re: [PATCH RESEND v6 2/8] blk-throttle: prevent overflow while calculating wait time |
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On Fri, Jul 01, 2022 at 05:34:35PM +0800, Yu Kuai wrote: > From: Yu Kuai <yukuai3@huawei.com> > > In tg_with_in_bps_limit(), 'bps_limit * jiffy_elapsed_rnd' might > overflow. FIx the problem by calling mul_u64_u64_div_u64() instead. > > Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
BTW, have you observed this happening or is it from just reviewing the code?
Thanks.
-- tejun
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