tux3: Introduce nanosecond timestamp format

This format is not fixed version though, was easier to implement
compared with fixed 32.32.

FIXME: timestamp can has many unused bits, and it bloats inode
size. So, we may introduce new format again to reduce size.

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