Add RAID stride support to resize2fs

Resize2fs will now automatically determine the RAID stride parameter that
had been used to create the filesystem, and use that for newly created
block groups.   The RAID stride parameter may also be manually specified
on the command line using the new -S option to resize2fs.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

3 files changed