tree 84fc0995d9f6f745f9561a06f366d3fababdf6eb
parent 06ef42a16f2dd8480ada1be3a549e12b02c45915
author Kirill A. Shutemov <kirill.shutemov@linux.intel.com> 1429051560 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1429055342 -0700

s390: expose number of page table levels

We would want to use number of page table level to define mm_struct.
Let's expose it as CONFIG_PGTABLE_LEVELS.

Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page
table levels folded.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>