Messages in this thread | | | Date | Mon, 4 Apr 2005 13:11:32 -0600 (MDT) | From | Zwane Mwaikambo <> | Subject | Re: [RFC 5/6]clean cpu state after hotremove CPU |
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On Mon, 4 Apr 2005, Li Shaohua wrote:
> Clean up all CPU states including its runqueue and idle thread, > so we can use boot time code without any changes. > Note this makes /sys/devices/system/cpu/cpux/online unworkable. > > #ifdef CONFIG_HOTPLUG_CPU > #include <asm/nmi.h> > + > +#ifdef CONFIG_STR_SMP > +extern void cpu_exit_clear(int); > +#endif
Perhaps change that ifdef to denote something which clearly shows that its physical hotplug as we'll need this for other users too.
> +#ifdef CONFIG_STR_SMP > +extern void do_exit_idle(void); > +extern void cpu_uninit(void); > +void cpu_exit_clear(int cpu) > +{ > + int sibling; > + cpucount --;
Is that protected by the cpu_control semaphore?
Thanks, Zwane
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