[PATCH v13 7/8] arm64: add pmd_[dirty|mkclean] for THP

On Fri, Jul 18, 2014 at 03:53:05PM +0900, Minchan Kim wrote:

MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent
overwrite of the contents since MADV_FREE syscall is called for
THP page.

This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE
support.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <redacted>
Cc: Steve Capper <redacted>
Cc: Russell King <redacted>
Cc: linux-arm-kernel at lists.infradead.org
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>

Acked-by: Steve Capper <redacted>