linux-kernel - Re: [RFC PATCH 5/7] libnvdimm, e820: make CONFIG_X86_PMEM

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Message-ID: <20150817150158.GB2625@lst.de>
Date:	Mon, 17 Aug 2015 17:01:58 +0200
From:	Christoph Hellwig <hch@....de>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	Christoph Hellwig <hch@....de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Boaz Harrosh <boaz@...xistor.com>,
	Rik van Riel <riel@...hat.com>,
	"linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
	david <david@...morbit.com>, Ingo Molnar <mingo@...nel.org>,
	Linux MM <linux-mm@...ck.org>, Mel Gorman <mgorman@...e.de>,
	Ross Zwisler <ross.zwisler@...ux.intel.com>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>
Subject: Re: [RFC PATCH 5/7] libnvdimm, e820: make CONFIG_X86_PMEM_LEGACY a
	tristate option

On Sat, Aug 15, 2015 at 09:04:02AM -0700, Dan Williams wrote:
> What other layer? /sys/devices/platform/e820_pmem is that exact same
> device we had before this patch.  We just have a proper driver for it
> now.

We're adding another layer of indirection between the old e820 file
and the new module.
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