tree 7cbd062631c9ab2e8e7f9859028219d352c4fb60
parent d0b4295ccc07d0cd715ade415c8c0d7d6945880e
author Jeff Sharkey <jsharkey@android.com> 1432272942 -0700
committer Jeff Sharkey <jsharkey@android.com> 1433820085 -0700

Add f2fs support for private volumes.

When formatting volumes, pass along fsType string which can be "auto"
to let the volume select the best choice.  For now, private volumes
assume that MMC devices (like SD cards) are best off using f2fs when
both kernel support and tools are present, otherwise fall back to
ext4.  Use blkid when mounting to pick the right set of tools.

Move filesystem utility methods into namespaces and place in separate
directory to be more organized.

Bug: 20275581
Change-Id: Id5f82d8672dda2e9f68c35b075f28232b0b55ed4