linux-kernel - Re: [PATCH 02/15] libnvdimm: infrastructure for btt devices

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Date:	Wed, 24 Jun 2015 14:10:40 +0200
From:	Christoph Hellwig <hch@....de>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	Christoph Hellwig <hch@....de>, Jeff Moyer <jmoyer@...hat.com>,
	Jens Axboe <axboe@...nel.dk>,
	"linux-nvdimm@...ts.01.org" <linux-nvdimm@...1.01.org>,
	Neil Brown <neilb@...e.de>,
	Greg KH <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Linux ACPI <linux-acpi@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 02/15] libnvdimm: infrastructure for btt devices

On Tue, Jun 23, 2015 at 08:19:57AM -0700, Dan Williams wrote:
> That tie was only to enable autodetect so that we don't need to run a
> BTT assembly step from an initramfs just to get an NVDIMM up and
> running.  It was a convenience, not a requirement.

It's a very deep tying for that feature.  Look at what the raid code
does just for scanning.  Although even that is officially deprecate
because people don't like in-kernel scanning (which I tend to disagree with).
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