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

From: Jeff Moyer
Date: Mon Jun 22 2015 - 12:01:03 EST

Christoph Hellwig <hch@xxxxxx> writes:

> On Mon, Jun 22, 2015 at 11:02:24AM -0400, Jeff Moyer wrote:
>> Agreed, we can't audit all code, and springing this potential data
>> corruptor on people seems irresponsible.
> How do "the people" know they'd have to use btt in the current setup
> without auditing their stack first?

Right now, the guidance should be to always use btt since there are no
applications that are directly taking advantage of persistent memory
(that I know). I expect documentation would take care of that. I also
expect that, as applications add support, they would note the
requirement for dax mountpoints in their documentation.

So, "the people" find out the same way they always have. :)

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
Please read the FAQ at