Re: [PATCH] dax: integrate *sync code & multi-order radix tree

[Ross Zwisler]

On Thu, Apr 14, 2016 at 03:03:24PM -0600, Ross Zwisler wrote:
> With the new addition of the multi-order radix tree support we can simplify
> the DAX *sync PMD support a bit.  Instead of manually checking to see if
> our index is covered by a PMD entry we can rely on the new radix tree to
> return the PMD entry if present.
> 
> Signed-off-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>

Sorry, I should have explicitly called out that this patch (indeed, all
multi-order uses of the radix tree) need to be built upon the recent
multi-order fixes from Matthew and me:

https://lkml.org/lkml/2016/4/14/481

I've posted a working tree here:

https://git.kernel.org/cgit/linux/kernel/git/zwisler/linux.git/log/?h=dax_mo_radix

Thanks,
- Ross