On Wed, 13 Aug 2014 20:04:02 +0000 "Wilcox, Matthew R" [off-list ref] wrote:

The commit log for 67f87463d3 explains what the runtime effects should have been.

No it doesn't.  In fact the sentence "The existing caller of
pmdp_invalidate should handle it but it's an inconsistent state for a
PMD." makes me suspect there are no end-user visible effects.

I don't know why we chose to backport that one into -stable and I don't
know why we should backport this one either.

Greg (and others) will look at this changelog and wonder "why".  It
should tell them.

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