linux-kernel - Re: [dm-devel] [PATCH 2/3] dm raid1: add interface to set resync speed

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Date:	Fri, 30 Nov 2012 12:39:28 +0100
From:	Lars Marowsky-Bree <lmb@...e.com>
To:	device-mapper development <dm-devel@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [dm-devel] [PATCH 2/3] dm raid1: add interface to set resync
 speed

On 2012-11-22T14:27:52, Guangliang Zhao <gzhao@...e.com> wrote:

Hi Guangliang,

thanks for adding this. I think this approach is a good direction to
take, just one feedback:

> Add ioctl to control resync speed, userspace tool
> is dmsetup message, message format is:
> 	dmsetup message $device 0 "set $speed"
> e.g.
> 	dmsetup message /dev/dm-2 "set 12345"

I think this should be "set-max-resync-rate" or something; "set" is very
generic and not very extensible going forward, should the need arise.

Regards,
    Lars

-- 
Architect Storage/HA
SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg)
"Experience is the name everyone gives to their mistakes." -- Oscar Wilde

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