ext4: validate external journal superblock checksum

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If the external journal device has metadata_csum enabled, verify
that the superblock checksum matches the block before we try to
mount.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

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Darrick J. Wong 2014-09-11 11:44:36 -04:00 • committed by Theodore Ts'o

parent feb8c6d3dd

commit df4763bea5

1 changed files with 9 additions and 0 deletions

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fs/ext4/super.c

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