Re: [PATCH v11 54/63] dax: Hash on XArray instead of mapping

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On Sat, Apr 14, 2018 at 07:13:07AM -0700, Matthew Wilcox wrote:
> From: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
> 
> Since the XArray is embedded in the struct address_space, this contains
> exactly as much entropy as the address of the mapping.

I agree that they both have the same amount of entropy, but what's the
benefit?  It doesn't seem like this changes any behavior, fixes any bugs or
makes things any simpler?
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