linux-kernel - Re: [PATCH v2 10/10] blk-throttle: avoid dead code in throtl_hierarchy_can

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Message-ID: <Y4fMyEo0dxPl/Kt1@slm.duckdns.org>
Date:   Wed, 30 Nov 2022 11:36:08 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Kemeng Shi <shikemeng@...wei.com>
Cc:     josef@...icpanda.com, axboe@...nel.dk, cgroups@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 10/10] blk-throttle: avoid dead code in
 throtl_hierarchy_can_upgrade

On Tue, Nov 29, 2022 at 11:01:47AM +0800, Kemeng Shi wrote:
> Function throtl_hierarchy_can_upgrade will always return from while loop,
> so the return outside while loop is never reached. Break the loop when
> we traverse to root as throtl_hierarchy_can_downgrade do to avoid dead
> code.

I don't know why this is an improvement.

-- 
tejun