Messages in this thread | | | Date | Mon, 8 Sep 2008 19:26:02 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] kernel/cpu.c: create a CPU_STARTING cpu_chain notifier |
| |
* Manfred Spraul <manfred@colorfullife.com> wrote:
> Right now, there is no notifier that is called on a new cpu, before > the new cpu begins processing interrupts/softirqs. Various kernel > function would need that notification, e.g. kvm works around by > calling smp_call_function_single(), rcu polls cpu_online_map. > > The patch adds a CPU_STARTING notification. It also adds a helper > function that sends the message to all cpu_chain handlers. > > Tested on x86-64. > > All other archs are untested. Especially on sparc, I'm not sure if I > got it right.
applied to tip/sched/cpu-hotplug - thanks Manfred, nice cleanup. (FYI, i fixed up the 3 problems that checkpatch reported)
David, can you see any problems with the Sparc32 bits?
Ingo
| |