[Devel] Re: [RFC v7][PATCH 2/9] General infrastructure for checkpoint restart

[Dave Hansen]

On Mon, 2008-10-27 at 17:51 -0400, Oren Laadan wrote:
> >       Instead, how about a flag to sys_checkpoint() -- DO_RISKY_CHECKPOINT --
> > which checkpoints despite !may_checkpoint?
> 
> I also agree with Matt - so we have a quorum :)
> 
> so just to clarify: sys_checkpoint() is to fail (with what error ?) if the
> deny-checkpoint test fails.
> 
> however, if the user is risky, she can specify CR_CHECKPOINT_RISKY to force
> an attempt to checkpoint as is.

This sounds like an awful lot of policy to determine *inside* the
kernel.  Everybody is going to have a different definition of risky, so
this scheme will work for approximately 5 minutes until it gets
patched. :)

Is it possible to enhance our interface such that users might have some
kind of choice on these matters?

-- Dave

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