Re: [PATCH] blk-throttle: fix zero wait time for iops throttled group

[Konstantin Khlebnikov]

On 10.07.2019 17:00, Jens Axboe wrote:
> On 7/8/19 9:29 AM, Konstantin Khlebnikov wrote:
> > After commit 991f61fe7e1d ("Blk-throttle: reduce tail io latency when iops
> > limit is enforced") wait time could be zero even if group is throttled and
> > cannot issue requests right now. As a result throtl_select_dispatch() turns
> > into busy-loop under irq-safe queue spinlock.
> >
> > Fix is simple: always round up target time to the next throttle slice.
>
> Applied, thanks. In the future, please break lines at 72 chars in
> commit messages, I fixed it up.

Ok, but Documentation/process/submitting-patches.rst and
scripts/checkpatch.pl recommends 75 chars per line.