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e545a6140b
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. Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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arch-v10 | ||
arch-v32 | ||
kernel | ||
mm | ||
artpec_3_defconfig | ||
defconfig | ||
etraxfs_defconfig | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |