On Tue, Mar 29, 2016 at 11:57 AM, Verma, Vishal L
<vishal.l.verma@xxxxxxxxx> wrote:
> On Mon, 2016-03-28 at 16:34 -0700, Dan Williams wrote:
>
> <>
>
>> Seems kind of sad to fail the fault due to a bad block when we were
>> going to zero it anyway, right? I'm not seeing a compelling reason to
>> keep any zeroing in fs/dax.c.
>
> Agreed - but how do we do this? clear_pmem needs to be able to clear an
> arbitrary number of bytes, but to go through the driver, we'd need to
> send down a bio? If only the driver had an rw_bytes like interface that
> could be used by anyone... :)
I think we're ok because clear_pmem() will always happen on PAGE_SIZE,
or HPAGE_SIZE boundaries.
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