Re: [PATCH 0/6] Support DAX for device-mapper dm-linear devices

On Tue, 2016-06-14 at 09:50 -0400, Jeff Moyer wrote:

"Kani, Toshimitsu" [off-list ref] writes:

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I had dm-linear and md-raid0 support on my list of things to look at,
did you have raid0 in your plans?

Yes, I hope to extend further and raid0 is a good candidate. 

dm-flakey would allow more xfstests test cases to run.  I'd say that's
more important than linear or raid0.  ;-)

That's an interesting one.  We can emulate badblocks by failing
direct_access with -EIO, but I do not think we can emulate "drop_writes" and
"corrupt_bio_byte" features with DAX...

Also, the next step in this work is to then decide how to determine on
what numa node an LBA resides.  We had discussed this at a prior
plumbers conference, and I think the consensus was to use xattrs.
Toshi, do you also plan to do that work?

No, it's not my plan at this point.

Thanks,
-Toshi