linux-kernel - Re: [PATCH v3 6/9] dax: introduce a ->copy_to

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Message-ID: <20180523161319.GA29519@linux.intel.com>
Date:   Wed, 23 May 2018 10:13:19 -0600
From:   Ross Zwisler <ross.zwisler@...ux.intel.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     linux-nvdimm@...ts.01.org,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Mike Snitzer <snitzer@...hat.com>,
        Christoph Hellwig <hch@....de>, linux-kernel@...r.kernel.org,
        tony.luck@...el.com, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH v3 6/9] dax: introduce a ->copy_to_iter dax operation

On Thu, May 03, 2018 at 05:06:37PM -0700, Dan Williams wrote:
> Similar to the ->copy_from_iter() operation, a platform may want to
> deploy an architecture or device specific routine for handling reads
> from a dax_device like /dev/pmemX. On x86 this routine will point to a
> machine check safe version of copy_to_iter(). For now, add the plumbing
> to device-mapper and the dax core.
> 
> Cc: Ross Zwisler <ross.zwisler@...ux.intel.com>
> Cc: Mike Snitzer <snitzer@...hat.com>
> Cc: Christoph Hellwig <hch@....de>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>

Looks good to me.

Reviewed-by: Ross Zwisler <ross.zwisler@...ux.intel.com>