powerpc/mm: Fix infinite loop in hash fault with 4K page size

[Michael Ellerman]

On Sat, 2015-28-11 at 17:09:33 UTC, "Aneesh Kumar K.V" wrote:
> This is the same bug we fixed as part of 09567e7fd44291bfc08accfdd67ad8f467842332
> ("powerpc/mm: Check paca psize is up to date for huge mappings"). Please
> check that for details. The difference here is that faults were
> happening on a 4K page at an address previously mapped by hugetlb.
> 
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.vnet.ibm.com>
> Reviewed-by: Anshuman Khandual <khandual at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/0863d7f2136550a281f40f4d

cheers