ext4: record the checksum algorithm in use in the superblock
authorDarrick J. Wong <djwong@us.ibm.com>
Sun, 29 Apr 2012 22:25:10 +0000 (18:25 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Sun, 29 Apr 2012 22:25:10 +0000 (18:25 -0400)
Record the type of checksum algorithm we're using for metadata in the
superblock, in case we ever want/need to change the algorithm.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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