linux-kernel - Re: [PATCH 04/13] blkcg: introduce common blkg association logic

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Message-ID: <20181127210443.pornubsaa6vcbgih@macbook-pro-91.dhcp.thefacebook.com>
Date:   Tue, 27 Nov 2018 16:04:44 -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 04/13] blkcg: introduce common blkg association logic

On Mon, Nov 26, 2018 at 04:19:37PM -0500, Dennis Zhou wrote:
> There are 3 ways blkg association can happen: association with the
> current css, with the page css (swap), or from the wbc css (writeback).
> 
> This patch handles how association is done for the first case where we
> are associating bsaed on the current css. If there is already a blkg
> associated, the css will be reused and association will be redone as the
> request_queue may have changed.
> 
> Signed-off-by: Dennis Zhou <dennis@...nel.org>

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

Thanks,

Josef