linux-kernel - Re: [PATCH 2/2] blk-throttle: improve bypassing bios checkings

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Message-ID: <Yy56O9NbiyBogSLD@slm.duckdns.org>
Date:   Fri, 23 Sep 2022 17:32:11 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Yu Kuai <yukuai1@...weicloud.com>
Cc:     axboe@...nel.dk, cgroups@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        yukuai3@...wei.com, yi.zhang@...wei.com
Subject: Re: [PATCH 2/2] blk-throttle: improve bypassing bios checkings

On Wed, Sep 21, 2022 at 05:53:09PM +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@...wei.com>
> 
> "tg->has_rules" is extended to "tg->has_rules_iops/bps", thus bios that
> don't need to be throttled can be checked accurately.
> 
> With this patch, bio will be throttled if:
> 
> 1) Bio is read/write, and corresponding read/write iops limit exist.
> 2) If corresponding doesn't exist, corresponding bps limit exist and
> bio is not throttled before.
> 
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun