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Date: Mon, 2 Nov 2009 18:11:33 -0800 From: Paul Menage <menage@...gle.com> To: Li Zefan <lizf@...fujitsu.com> Cc: bblum@...rew.cmu.edu, linux-kernel@...r.kernel.org, Linux Containers <containers@...ts.linux-foundation.org>, Andrew Morton <akpm@...ux-foundation.org> Subject: Re: [RFC][PATCH 0/3] cgroups: support for module-loadable subsystems On Mon, Nov 2, 2009 at 6:03 PM, Li Zefan <lizf@...fujitsu.com> wrote: > > I doubt the value of module-loadable subsystems. A cgroup subsystem > is usually a kernel resource controller, and normally it needs to > add some hooks in some in-kernel structures and functions, which > makes it impossible to be a module. Not true - as the classifier example shows, if there's already a framework that supports hooking loadable modules into some kernel system, a resource controller can be a module. > > In fact, net_cls is the only subsystem that can be a module, and > make it a module doesn't seem to have real benefit? Wouldn't it be just as useful as any other module-loadable classifier, of which there are quite a few? It's true that net_cls is currently the only subsystem that makes sense to use as a module, but its existence shows that the concept isn't too outlandish. Paul -- 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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