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Message-ID: <20121102230757.GF27843@mtj.dyndns.org>
Date:	Fri, 2 Nov 2012 16:07:57 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Robin Dong <robin.k.dong@...il.com>
Cc:	linux-kernel@...r.kernel.org, Robin Dong <sanbai@...bao.com>,
	Vivek Goyal <vgoyal@...hat.com>, Jens Axboe <axboe@...nel.dk>,
	Tao Ma <boyu.mt@...bao.com>
Subject: Re: [PATCH 2/2 v5] block/throttle: Add IO submitted information in
 blkio.throttle

On Fri, Nov 02, 2012 at 05:31:37PM +0800, Robin Dong wrote:
> From: Robin Dong <sanbai@...bao.com>
> 
> Currently, if the IO is throttled by io-throttle, the system admin has no idea
> of the situation and can't report it to the real application user about that
> he/she has to do something.
> 
> So this patch adds a new interface named blkio.throttle.io_submitted which
> exposes the number of bios that have been sent into blk-throttle therefore the
> user could calculate the difference from throttle.io_serviced to see how many
> IOs are currently throttled.
> 
> Cc: Tejun Heo <tj@...nel.org>
> Cc: Vivek Goyal <vgoyal@...hat.com>
> Cc: Jens Axboe <axboe@...nel.dk>
> Signed-off-by: Tao Ma <boyu.mt@...bao.com>
> Signed-off-by: Robin Dong <sanbai@...bao.com>

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

Thanks.

-- 
tejun
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