linux-kernel - Re: [PATCH block/for-3.18] blkcg: remove blkcg->id

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Message-ID: <540DD1C3.7000800@kernel.dk>
Date:	Mon, 08 Sep 2014 09:56:51 -0600
From:	Jens Axboe <axboe@...nel.dk>
To:	Tejun Heo <tj@...nel.org>
CC:	Vivek Goyal <vgoyal@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH block/for-3.18] blkcg: remove blkcg->id

On 09/07/2014 05:15 PM, Tejun Heo wrote:
> blkcg->id is a unique id given to each blkcg; however, the
> cgroup_subsys_state which each blkcg embeds already has ->serial_nr
> which can be used for the same purpose.  Drop blkcg->id and replace
> its uses with blkcg->css.serial_nr.  Rename cfq_cgroup->blkcg_id to
> ->blkcg_serial_nr and @id in check_blkcg_changed() to @serial_nr for
> consistency.

Thanks Tejun, applied.

-- 
Jens Axboe

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