This is safe because we run 'f2fs.fsck -f' on all writable
/dev/block* paritions on shutdown.
Bug: 21853106
Change-Id: I368a8676093c97e70ad7c09e9b71665d3c445a16
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
