[Ocfs2-devel] [PATCH 3/3] ocfs2:freeze-thaw: make it work

[Sunil Mushran]

Wengang Wang wrote:
> cancel convert for what? only the freeze lock or a command interface for
> all cluster lock?
> I don't know if it's needed for a commond cluster lock. But anyway,
> seems the freeze/thaw relies on a cancelable(or a timeout version of) cluster
> lock. Otherwise, the lock will wait for thaw for ever. If there is a umount at
> the time, ocfs2 cleaning up hangs(at flushing work queue). Yes maybe we have a
> way to postpone the umount if we are aquiring the PR lock, but that also
> means if the cluster is frozen, umount has to wait until cluster thawed(this
> is bad).
>
> So, if we have plan to implement cancelable cluster lock(or a timeout version of
> cluster lock). I think we'd better do that before supporting freeze/thaw.

No. Please ignore the timer bit for now. Implement the rest first.
We'll get to this later.