Re: [PATCH 14/15] libnvdimm: support read-only btt backing devices

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Dan Williams <dan.j.williams@xxxxxxxxx> writes:

>> Sounds like we simply shouldn't merge btt at all for now and wait for
>> a real use case, which would simplify the whole issue a lot.
>
> The sinister aspect of sector tearing is that most applications don't
> know they have this dependency.  At least today's disk's rarely ever
> tear sectors and if they do you almost certainly get a CRC error on
> access.  NVDIMMs will always tear and always silently.  I think not
> merging BTT at all to see what happens is simply wrong.

Agreed, we can't audit all code, and springing this potential data
corruptor on people seems irresponsible.

-Jeff
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