Messages in this thread | | | Subject | Re: [PATCH 2/3] cpu: add a CPU_DOWN_PREPARE notifier | From | Rusty Russell <> | Date | Thu, 09 Sep 2004 20:23:39 +1000 |
| |
On Wed, 2004-09-08 at 22:52, Nick Piggin wrote: > 2/3 > > Rusty, can I do this? > > ______________________________________________________________________ > Add a CPU_DOWN_PREPARE hotplug CPU notifier. This is needed so we can > dettach all sched-domains before a CPU goes down, thus we can build > domains from online cpumasks, and not have to check for the possibility > of a CPU coming up or going down.
And if taking the CPU down fails? If you need this, you need the CPU_DOWN_FAILED as well, unfortunately. Hence I prefer the "do the domain thing while machine is frozen" and sidestep it entirely.
Rusty. -- Anyone who quotes me in their signature is an idiot -- Rusty Russell
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |