Re: [RFC v7][PATCH 0/9] Kernel based checkpoint/restart

From: Andrew Morton
Date: Tue Oct 21 2008 - 15:22:55 EST

On Mon, 20 Oct 2008 01:40:28 -0400
Oren Laadan <orenl@xxxxxxxxxxxxxxx> wrote:

> These patches implement basic checkpoint-restart [CR]. This version
> (v7) supports basic tasks with simple private memory, and open files
> (regular files and directories only).

This is a problem. I wouldn't want to be in a position where we merge
this code in mainline, but it's just a not-very-useful toy. Then, as
we turn it into a useful non-toy it all turns into an utter mess.

IOW, merging this code as-is will commit us to merging more code which
hasn't even been written yet. It might even commit us to solving
thus-far-unknown problems which we don't know how to solve!

It's a big blank cheque.


- how useful is this code as it stands in real-world usage?

- what additional work needs to be done to it? (important!)

- how far are we down the design and implementation path with that new
work? Are we yet at least in a position where we can say "yes, this
feature can be completed and no, it won't be a horrid mess"?

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