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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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alpha | ||
arm | ||
avr32 | ||
blackfin | ||
cris | ||
frv | ||
h8300 | ||
ia64 | ||
m32r | ||
m68k | ||
m68knommu | ||
mips | ||
mn10300 | ||
parisc | ||
powerpc | ||
s390 | ||
sh | ||
sparc | ||
sparc64 | ||
um | ||
x86 | ||
xtensa | ||
.gitignore | ||
Kconfig |