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Subject: Re: [PATCH] block/bfq: the delta_from_first should be ns rather than
 us
To:     Paolo Valente <paolo.valente@linaro.org>,
        liubaozhu <liubaozhu@uniontech.com>
Cc:     linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20210721063047.92122-1-liubaozhu@uniontech.com>
 <3A3B282C-FA5D-43F3-9C78-5E257C93A835@linaro.org>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <fd992897-2ef6-f574-eb07-5223fc6b1af5@kernel.dk>
Date:   Wed, 21 Jul 2021 10:19:22 -0600
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On 7/21/21 1:54 AM, Paolo Valente wrote:
> 
> 
>> Il giorno 21 lug 2021, alle ore 08:30, liubaozhu <liubaozhu@uniontech.com <mailto:liubaozhu@uniontech.com>> ha scritto:
>>
>> In the block/bfq-iosched.c,the function bfq_update_peak_rate(),
>> bfqd->delta_from_first = now_ns - bfqd->first_dispatch,
>> according to the subtraction operation here,now_ns is ns,
>> and bfqd->first_dispatch is also ns,so bfqd->delta_from_first should be ns.
>>
> 
> Correct!
> 
> Acked-by: Paolo Valente <paolo.valente@linaro.org <mailto:paolo.valente@linaro.org>>

Just pick this up for your 5.15 series and include it in that.

-- 
Jens Axboe