linux-kernel - Re: [PATCH 13/14] blkcg: change blkg reference counting to use percpu

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Message-ID: <20181204195437.cqixsk265n6dyetv@MacBook-Pro-91.local>
Date:   Tue, 4 Dec 2018 14:54:38 -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 13/14] blkcg: change blkg reference counting to use
 percpu_ref

On Tue, Dec 04, 2018 at 01:35:59PM -0500, Dennis Zhou wrote:
> Every bio is now associated with a blkg putting blkg_get, blkg_try_get,
> and blkg_put on the hot path. Switch over the refcnt in blkg to use
> percpu_ref.
> 
> Signed-off-by: Dennis Zhou <dennis@...nel.org>
> Acked-by: Tejun Heo <tj@...nel.org>

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

Thanks,

Josef