tree 4305e34c0a129c1351d9acabd254b0f896617470
parent 389d1b083c767a360ec84b27a95da06244becec8
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1201582707 -0500
committer Theodore Ts'o <tytso@mit.edu> 1201582707 -0500

ext4: add block bitmap validation

When a new block bitmap is read from disk in read_block_bitmap()
there are a few bits that should ALWAYS be set.  In particular,
the blocks given corresponding to block bitmap, inode bitmap and inode tables.
Validate the block bitmap against these blocks.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>