tree ae320a717aea5bf4f40d6e87816322ac7a79f3fb
parent 87a39389be3e3b007d341be510a7e4a0542bdf05
author Darrick J. Wong <darrick.wong@oracle.com> 1377730016 -0400
committer Theodore Ts'o <tytso@mit.edu> 1377730016 -0400

ext4: mark group corrupt on group descriptor checksum

If the group descriptor fails validation, mark the whole blockgroup
corrupt so that the inode/block allocators skip this group.  The
previous approach takes the risk of writing to a damaged group
descriptor; hopefully it was never the case that the [ib]bitmap fields
pointed to another valid block and got dirtied, since the memset would
fill the page with 1s.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>