tune2fs: add inode checksum support

This patch adds to tune2fs the ability to toggle the metadata checksum
rocompat feature flag, which will rewrite the inode table with
checksums.  Disallow changing the UUID while the fs is mounted,
because rewriting the metadata objects is racy.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
1 file changed