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H A Dextents.cdiff f84891289e62a74e9b4942eaad80617368b2d778 Sun Apr 29 17:21:10 CDT 2012 Darrick J. Wong <djwong@us.ibm.com> ext4: create a new BH_Verified flag to avoid unnecessary metadata validation

Create a new BH_Verified flag to indicate that we've verified all the
data in a buffer_head for correctness. This allows us to bypass
expensive verification steps when they are not necessary without
missing them when they are.

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