Messages in this thread | | | From | "Kani, Toshimitsu" <> | Subject | Re: [PATCH 0/6] Support DAX for device-mapper dm-linear devices | Date | Tue, 14 Jun 2016 15:53:23 +0000 |
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On Tue, 2016-06-14 at 09:50 -0400, Jeff Moyer wrote: > "Kani, Toshimitsu" <toshi.kani@hpe.com> writes: > > > 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 | |