linux-kernel - Re: [PATCH v3 1/3] blk-cgroup: check for pd_(alloc|free)_fn in blkcg_activate

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Message-ID: <ZpqgyCEhr6s4pXDc@slm.duckdns.org>
Date: Fri, 19 Jul 2024 07:22:16 -1000
From: Tejun Heo <tj@...nel.org>
To: Yu Kuai <yukuai1@...weicloud.com>
Cc: hch@...radead.org, bvanassche@....org, jack@...e.cz,
	josef@...icpanda.com, axboe@...nel.dk, cgroups@...r.kernel.org,
	linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
	yukuai3@...wei.com, yi.zhang@...wei.com, yangerkun@...wei.com
Subject: Re: [PATCH v3 1/3] blk-cgroup: check for pd_(alloc|free)_fn in
 blkcg_activate_policy()

On Fri, Jul 19, 2024 at 03:15:04PM +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@...wei.com>
> 
> Currently all policies implement pd_(alloc|free)_fn, however, this is
> not necessary for ioprio that only works for blkcg, not blkg.
> 
> There are no functional changes, prepare to cleanup activating ioprio
> policy.
> 
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>
> Reviewed-by: Christoph Hellwig <hch@....de>

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

Thanks.

-- 
tejun