This patch initializes the 'magic' field of ecryptfs filesystems to
ECRYPTFS_SUPER_MAGIC.
Signed-off-by: NRoberto Sassu <roberto.sassu@polito.it>
[tyhicks: merge with 66cb7666]
Signed-off-by: NTyler Hicks <tyhicks@linux.vnet.ibm.com>