powerpc/mm: enable the use of page table cache of order 0

hugepages uses a cache of order 0. Lets allow page tables
of order 0 in the common part in order to avoid open coding
in hugetlb

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2018-11-29 14:07:03 +00:00 • committed by Michael Ellerman
commit 129dd323dd
5 changed files with 7 additions and 19 deletions