[Ocfs2-devel] PATCH[0/5] nocontrold: Eliminating ocfs2_controld

[Goldwyn Rodrigues]

Hi,

This is an effort of removing ocfs2_controld.pcmk and getting ocfs2 DLM
handling up to the times with respect to DLM (>=4.0.1) and corosync
(2.3.x). AFAIK, cman also is being phased out for a unified corosync
cluster stack.

fs/dlm performs all the functions with respect to fencing and node
management and provides the API's to do so for ocfs2. For all future
references, DLM stands for fs/dlm code.

The advantages are:
 + No need to run an additional userspace daemon (ocfs2_controld)
 + No contrrold devince handling and controld protocol
 + Shifting responsibilities of node management to DLM layer
 + Huge reduction in source code, both in kernel and userspace

This feature requires modification in the userspace ocfs2-tools.
The changes can be found at:
https://github.com/goldwynr/ocfs2-tools branch: nocontrold
Currently, not many checks are present in the userspace code,
but that would change soon.

These changes were developed on linux-stable 3.10.y, though they 
are applicable at the current upstream as well. If you want to give
the entire kernel a spin, the link is:

https://github.com/goldwynr/linux-stable branch: nocontrold

Review comments/suggestions/criticism welcome.

-- 
Goldwyn