tree 9dd3bb67f14756e41207e3f0626aef6652caacf2
parent 6fe851cf21f8c60a73038d0184a039cdb27a9617
author Jose R. Santos <jrs@us.ibm.com> 1204295943 -0500
committer Theodore Ts'o <tytso@mit.edu> 1204295970 -0500

New bitmap and inode table allocation for FLEX_BG

Change the way we allocate bitmaps and inode tables if the FLEX_BG
feature is used at mke2fs time.  It places calculates a new offset for
bitmaps and inode table base on the number of groups that the user
wishes to pack together using the new "-G" option.  Creating a
filesystem with 64 block groups in a flex group can be done by:

mke2fs -j -I 256 -O flex_bg -G 32 /dev/sdX

Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: Valerie Clement <valerie.clement@bull.net>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>