Checkpoint/restart (was Re: [PATCH 0/4] - v2 - Object creationwith a specified id)

[Alexey Dobriyan]

On Fri, Apr 18, 2008 at 07:44:59AM +0200, Nadia.Derbey@xxxxxxxx wrote:
>    . echo "LONG XX" > /proc/self/task/<my_tid>/next_id
>      next object to be created will have an id set to XX
>    . echo "LONG<n> X0 ... X<n-1>" > /proc/self/task/<my_tid>/next_id
>      next object to be created will have its ids set to XX0, ... X<n-1>
>      This is particularly useful for processes that may have several ids if
>      they belong to nested namespaces.

Can we answer the following questions before merging this patch:

a) should mainline kernel have checkpoint/restart feature at all
b) if yes, should it be done from kernel- or userspace?

Until agreement will be "yes/from userspace" such patches don't make
sense in mainline.

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