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Date: Mon, 8 Jan 2018 11:07:51 -0500
From: Mike Snitzer <snitzer@redhat.com>
Subject: Re: [PATCH v6 1/2] dax: introduce CONFIG_DAX_DRIVER
Message-ID: <20180108160750.GB10224@redhat.com>
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To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-nvdimm@lists.01.org, Michael Ellerman <mpe@ellerman.id.au>, Heiko Carstens <heiko.carstens@de.ibm.com>, Bart Van Assche <Bart.VanAssche@wdc.com>, dm-devel@redhat.com, Paul Mackerras <paulus@samba.org>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Martin Schwidefsky <schwidefsky@de.ibm.com>, Gerald Schaefer <gerald.schaefer@de.ibm.com>
List-ID: <linux-nvdimm@lists.01.org>

On Wed, Nov 29 2017 at  2:00pm -0500,
Dan Williams <dan.j.williams@intel.com> wrote:

> In support of allowing device-mapper to compile out idle/dead code when
> there are no dax providers in the system, introduce the DAX_DRIVER
> symbol. This is selected by all leaf drivers that device-mapper might be
> layered on top. This allows device-mapper to conditionally 'select DAX'
> only when a provider is present.
> 
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Mike Snitzer <snitzer@redhat.com>
> Cc: Bart Van Assche <Bart.VanAssche@wdc.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Reviewed-by: Mike Snitzer <snitzer@redhat.com>
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