jbd2: gate checksum calculations on crc driver presence, not sb flags
Change the journal's checksum functions to gate on whether or not the crc32c driver is loaded, and gate the loading on the superblock bits. This prevents a journal crash if someone loads a journal in no-csum mode and then randomizes the superblock, thus flipping on the feature bits. Tested-By:Nikolay Borisov <kernel@kyup.com> Reported-by:
Nikolay Borisov <kernel@kyup.com> Signed-off-by:
Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by:
Theodore Ts'o <tytso@mit.edu>
parent
b90197b6
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