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Date: Wed, 11 Jul 2007 10:25:16 +0530 From: Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: "Paul Menage" <menage@...gle.com>, linux-kernel@...r.kernel.org, containers@...ts.osdl.org, Ingo Molnar <mingo@...e.hu> Subject: Re: containers (was Re: -mm merge plans for 2.6.23) On Tue, Jul 10, 2007 at 11:53:19AM -0700, Andrew Morton wrote: > On Tue, 10 Jul 2007 11:34:38 -0700 > "Paul Menage" <menage@...gle.com> wrote: > > > Andrew, how about we merge enough of the container framework to > > support CFS? Bits we could leave out for now include container_clone() > > support and the nsproxy subsystem, fork/exit callback hooks, and > > possibly leave cpusets alone for now (which would also mean we could > > skip the automatic release-agent stuff). I'm in Tokyo for the Linux > > Foundation Japan symposium right now, but I should be able to get the > > new patchset to you for Friday afternoon. > > mm.. Given that you propose leaving bits out for the 2.6.23 merge, and > that changes are still pending and that nothing will _use_ the framework in > 2.6.23 [...] Andrew, The cpu group scheduler is ready and waiting for the container patches in 2.6.23 :) Here are some options with us: a. (As Paul says) merge enough of container patches to enable its use with cfs group scheduler (and possibly cpusets?) b. Enable group scheduling bits in 2.6.23 using the user-id grouping mechanism (aka fair user scheduler). For 2.6.24, we could remove this interface and use Paul's container patches instead. Since this means change of API interface between 2.6.23 and 2.6.24, I don't prefer this option. c. Enable group scheduling bits only in -mm for now (2.6.23-mmX), using Paul's container patches. I can send you a short patch that hooks up cfs group scheduler with Paul's container infrastructure. If a. is not possible, I would prefer c. Let me know your thoughts .. -- Regards, vatsa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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