[PATCH V2 0/5] NestMMU pte upgrade workaround for mprotect

[Andrew Morton]

On Wed, 28 Nov 2018 20:04:33 +0530 "Aneesh Kumar K.V" <aneesh.kumar at linux.ibm.com> wrote:

> We can upgrade pte access (R -> RW transition) via mprotect. We need
> to make sure we follow the recommended pte update sequence as outlined in
> commit: bd5050e38aec ("powerpc/mm/radix: Change pte relax sequence to handle nest MMU hang")
> for such updates. This patch series do that.

The mm bits look (mostly) OK to me.  I suggest all these be merged via
the appropriate powerpc tree.