Add support for setting RAID stride and strip-width via mke2fs and tune2fs

This is useful for mballoc to align block allocation on the RAID
stripe boundaries.

Signed-off-by: Rupesh Thakare <rupesh@clusterfs.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
5 files changed