mke2fs: warn if enabling metadata_csum on a pre-3.18 kernel
The metadata_csum feature (really, the journal checksum disk format)
didn't stabilize until the 3.18 kernel, at which point the companion
journal_csum feature was turned on by default if metadata_csum was
enabled. Therefore, warn the user if they try to create such a
filesystem on a pre-3.18 kernel.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
projects / thirdparty / e2fsprogs.git / commit
