On Tue, Oct 21, 2008 at 09:33:19PM -0400, Oren Laadan wrote:

quoted

quoted

What happens if I pass it a pid of a process which I _do_ own, but it
does not refer to a container's init process?

I would assume that do_checkpoint() would return -EINVAL, but it's a
great question:  Oren, did you have another plan?

Since we intentional provide minimal functionality to keep the patchset
simple and allow easy review - we only checkpoint one task; it doesn't
really matter because we don't deal with the entire container.

With the ability to checkpoint multiple process we will have to ensure
that we checkpoint an entire container. I planned to return -EINVAL if
the target task isn't a container init(1). Another option, if people
prefer, is to use any task in a container to "represent" the entire
container.

I haven't been following - but why this whole container restriction?
Checkpoint/restart of individual processes is very useful too.
There are issues with e.g. IPC, but I'm not convinced they're
substantially different than the issues already present for a
container.

-- 
Daniel Jacobowitz
CodeSourcery

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