linux-kernel - Re: [PATCH 1/3] pmem: Initial version of persistent memory driver

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Date:	Thu, 26 Mar 2015 09:06:56 +0100
From:	Christoph Hellwig <hch@....de>
To:	Ross Zwisler <ross.zwisler@...ux.intel.com>
Cc:	Christoph Hellwig <hch@....de>, linux-nvdimm@...1.01.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	x86@...nel.org, boaz@...xistor.com, axboe@...nel.dk
Subject: Re: [PATCH 1/3] pmem: Initial version of persistent memory driver

On Wed, Mar 25, 2015 at 02:21:53PM -0600, Ross Zwisler wrote:
> What needed to be fixed with the partition support?  I used to have real
> numbers for first_minor and passed into alloc_disk(), but simplified it based
> on code found in this commit in the nvme driver:
> 
> 469071a37afc NVMe: Dynamically allocate partition numbers
> 
> This has worked fine for me - is there some test case in which it breaks?

Yes, if CONFIG_DEBUG_BLOCK_EXT_DEVT isn't set that code doesn't work at all.

> > +out_unmap:
> > +	pmem_unmapmem(pmem);
> > +out_free_dev:
> > +	kfree(pmem);
> > +out:
> 
> This label is no longer used, and can be removed.

Ok, fixed.
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