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#ifndef __XEN_STOP_MACHINE_H__
#define __XEN_STOP_MACHINE_H__
/**
* stop_machine_run: freeze the machine on all CPUs and run this function
* @fn: the function to run
* @data: the data ptr for the @fn()
* @cpu: the cpu to run @fn() on (or all, if @cpu == NR_CPUS).
*
* Description: This causes every other cpu to enter a safe point, with
* each of which disables interrupts, and finally interrupts are disabled
* on the current CPU. The result is that none is holding a spinlock
* or inside any other preempt-disabled region when @fn() runs.
*
* This can be thought of as a very heavy write lock, equivalent to
* grabbing every spinlock in the kernel. */
int stop_machine_run(int (*fn)(void *), void *data, unsigned int cpu);
#endif /* __XEN_STOP_MACHINE_H__ */
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