On Fri, May 30, 2008 at 05:36:41PM -0700, Joel Becker wrote:
> We have determined that ocfs2 can only leave a cluster group safely in
> put_super(7). The presence of bind mounts, rbind mounts, and shared
> subtrees make tracking mountpoints impossible in userspace.
>
> To solve this, we move the ocfs2_hb_ctl call out of o2cb and into the
> generic stack glue code. ocfs2_hb_ctl will always be called for all
> cluster stacks. This should be compatible with old and new tools - o2cb
> behavior doesn't change.
>
> The code is also available on the 'hbctl-path' branch of my git
> repository.
>
> View:
> http://oss.oracle.com/git/?p=jlbec/linux-2.6.git;a=shortlog;h=hbctl-path
> Pull:
> git pull git://oss.oracle.com/git/jlbec/linux-2.6.git hbctl-path

This is also why I've removed the gfs umount helpers from master.

Dave