jbd2: enable journal clients to enable v2 checksumming
authorDarrick J. Wong <djwong@us.ibm.com>
Sun, 27 May 2012 11:48:56 +0000 (07:48 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Sun, 27 May 2012 11:48:56 +0000 (07:48 -0400)
Add in the necessary code so that journal clients can enable the new
journal checksumming features.

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

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