ext4: add block bitmap validation

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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>

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Aneesh Kumar K.V 2008-01-28 23:58:27 -05:00 • committed by Theodore Ts'o

parent 389d1b083c

commit abcb2947c9

1 changed files with 81 additions and 18 deletions

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103

fs/ext4/balloc.c

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