Messages in this thread | | | From | Florian Weimer <> | Subject | Re: [RFC PATCH] proc, pidns: Add highpid | Date | Mon, 01 Dec 2014 07:47:26 +0100 |
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* Andy Lutomirski:
> On Nov 30, 2014 1:47 AM, "Florian Weimer" <fw@deneb.enyo.de> wrote: >> >> * Andy Lutomirski: >> >> > The initial implementation is straightforward: highpid is simply a >> > 64-bit counter. If a high-end system can fork every 3 ns (which >> > would be amazing, given that just allocating a pid requires at >> > atomic operation), it would take well over 1000 years for highpid to >> > wrap. >> >> I'm not sure if I'm reading the patch correctly, but is the counter >> namespaced? If yes, why? > > It's namespaced so that CRIU can migrate/restore a whole pid namespace.
Oh well, this requirement is at odds with system-wide uniqueness. Is CRIU really that important? :-)
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