linux-kernel - Re: [PATCH 1/3] block: Remove redundant parent blkcg_gp check in check_scale

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Message-ID: <Y02dnHeLS+XFO1VH@localhost.localdomain>
Date:   Mon, 17 Oct 2022 14:23:24 -0400
From:   Josef Bacik <josef@...icpanda.com>
To:     Kemeng Shi <shikemeng@...wei.com>
Cc:     tj@...nel.org, axboe@...nel.dk, cgroups@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] block: Remove redundant parent blkcg_gp check in
 check_scale_change

On Thu, Sep 29, 2022 at 03:40:53PM +0800, Kemeng Shi wrote:
> Function blkcg_iolatency_throttle will make sure blkg->parent is not
> NULL before calls check_scale_change. And function check_scale_change
> is only called in blkcg_iolatency_throttle.
> 
> Signed-off-by: Kemeng Shi <shikemeng@...wei.com>

Reviewed-by: Josef Bacik <josef@...icpanda.com>

Thanks,

Josef