On Mon, Aug 15, 2016 at 01:21:47PM -0700, Dan Williams wrote:

On Mon, Aug 15, 2016 at 12:09 PM, Ross Zwisler
[off-list ref] wrote:

quoted

DAX PMDs have been disabled since Jan Kara introduced DAX radix tree based
locking.  This series allows DAX PMDs to participate in the DAX radix tree
based locking scheme so that they can be re-enabled.

Looks good to me.

quoted

This series restores DAX PMD functionality back to what it was before it
was disabled.  There is still a known issue between DAX PMDs and hole
punch, which I am currently working on and which I plan to address with a
separate series.

Perhaps we should hold off on applying patch 6 and 7 until after the
hole-punch fix is ready?

Sure, I'm cool with holding off on patch 7 (the Kconfig change) until after
the hole punch fix is ready.

I don't see a reason to hold off on patch 6, though?  It stands on it's own,
implements the correct locking, and doesn't break anything.

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