linux-kernel - Re: [PATCH 2/4] nvdimm/btt: don't allocate unused major device number

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Message-ID: <20160310090513.GO3464@c203.arch.suse.de>
Date:	Thu, 10 Mar 2016 10:05:13 +0100
From:	Johannes Thumshirn <jthumshirn@...e.de>
To:	NeilBrown <neilb@...e.com>
Cc:	Keith Busch <keith.busch@...el.com>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	Jens Axboe <axboe@...com>,
	Dan Williams <dan.j.williams@...el.com>,
	Ross Zwisler <ross.zwisler@...ux.intel.com>,
	linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
	linux-nvdimm@...ts.01.org
Subject: Re: [PATCH 2/4] nvdimm/btt: don't allocate unused major device number

On Thu, Mar 10, 2016 at 08:59:28AM +1100, NeilBrown wrote:
> alloc_disk(0) does not require or use a ->major number,
> all devices are allocated with a major of BLOCK_EXT_MAJOR.
> 
> So don't allocate btt_major.
> 
> Signed-off-by: NeilBrown <neilb@...e.com>

Reviewed-by: Johannes Thumshirn <jthumshirn@...e.de>

-- 
Johannes Thumshirn                                          Storage
jthumshirn@...e.de                                +49 911 74053 689
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