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Message-ID: <20181204195301.delc756zuo5gxtlw@MacBook-Pro-91.local>
Date:   Tue, 4 Dec 2018 14:53:02 -0500
From:   Josef Bacik <josef@...icpanda.com>
To:     Dennis Zhou <dennis@...nel.org>
Cc:     Jens Axboe <axboe@...nel.dk>, Tejun Heo <tj@...nel.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Josef Bacik <josef@...icpanda.com>, kernel-team@...com,
        linux-block@...r.kernel.org, cgroups@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/14] blkcg: remove additional reference to the css

On Tue, Dec 04, 2018 at 01:35:57PM -0500, Dennis Zhou wrote:
> The previous patch in this series removed carrying around a pointer to
> the css in blkg. However, the blkg association logic still relied on
> taking a reference on the css to ensure we wouldn't fail in getting a
> reference for the blkg.
> 
> Here the implicit dependency on the css is removed. The association
> continues to rely on the tryget logic walking up the blkg tree. This
> streamlines the three ways that association can happen: normal, swap,
> and writeback.
> 
> Signed-off-by: Dennis Zhou <dennis@...nel.org>
> Acked-by: Tejun Heo <tj@...nel.org>

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

Thanks,

Josef

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