linux-kernel - Re: [dm-devel] Re: Problem w/ CONFIG_DEBUG_BLOCK_EXT

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Message-ID: <48BD3031.3090905@kernel.org>
Date:	Tue, 02 Sep 2008 14:23:13 +0200
From:	Tejun Heo <tj@...nel.org>
To:	device-mapper development <dm-devel@...hat.com>,
	"Alan D. Brunelle" <Alan.Brunelle@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jens Axboe <jens.axboe@...cle.com>
Subject: Re: [dm-devel] Re: Problem w/ CONFIG_DEBUG_BLOCK_EXT_DEVT

Alasdair G Kergon wrote:
> On Tue, Sep 02, 2008 at 01:06:24PM +0200, Tejun Heo wrote:
>> Well, dev_t is 32bits and MINORBITS is 20.  So, major 12 bits, minor 20
>> bits, so 4 characters for major, 7 characters for minor.
>  
> Upstream libdevmapper CVS patched - will appear in next release (1.02.28).

Alright, thanks.  What about the /proc/devices one?  Would adding an
entry help?  I'm kind of lost /proc/devices.  It's now mostly
non-functional legacy stuff we've been carrying around.  Is it
deprecated or do we intend to keep it around forever?

Ooh.. which also reminds me that I forgot to reserve the major number w/
lanana.  Will do that.

Thanks.

-- 
tejun
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