core-truncate_page

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
mmap-truncate_page

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
core-mmap-helpers

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
mmap-mmap-helpers

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>