tree 56882b7b36c6b60a8208f6ed5bee9904adc7b649
parent 7f68fc28219be3b44ef4132f95c6506ff3e806b5
author Tao Ma <tao.ma@oracle.com> 1197964023 +0800
committer Mark Fasheh <mark.fasheh@oracle.com> 1201301615 -0800

[PATCH 1/2] ocfs2: Add group extend for online resize

This patch adds the ability for a userspace program to request an extend of
last cluster group on an Ocfs2 file system. The request is made via ioctl,
OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is
obviously Ocfs2 specific.

tunefs.ocfs2 would call this for an online-resize operation if the last
cluster group isn't full.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>