linux-kernel - Re: [PATCH 03/14] blk-cgroup: allow controllers to output their own stats

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Message-ID: <20180702210648.GM533219@devbig577.frc2.facebook.com>
Date:   Mon, 2 Jul 2018 14:06:48 -0700
From:   Tejun Heo <tj@...nel.org>
To:     Josef Bacik <josef@...icpanda.com>
Cc:     axboe@...nel.dk, kernel-team@...com, linux-block@...r.kernel.org,
        akpm@...ux-foundation.org, hannes@...xchg.org,
        linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Josef Bacik <jbacik@...com>
Subject: Re: [PATCH 03/14] blk-cgroup: allow controllers to output their own
 stats

On Fri, Jun 29, 2018 at 03:25:31PM -0400, Josef Bacik wrote:
> From: Josef Bacik <jbacik@...com>
> 
> blk-iolatency has a few stats that it would like to print out, and
> instead of adding a bunch of crap to the generic code just provide a
> helper so that controllers can add stuff to the stat line if they want
> to.
> 
> Hide it behind a boot option since it changes the output of io.stat from
> normal, and these stats are only interesting to developers.
> 
> Signed-off-by: Josef Bacik <jbacik@...com>

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

Thanks.

-- 
tejun