Revision 8d16b76421f0b3216012ee2d7819355e1cb847e5 authored by Stephen Hemminger on 31 May 2006, 04:26:09 UTC, committed by Linus Torvalds on 31 May 2006, 23:27:11 UTC
From: Stephen Hemminger <shemminger@osdl.org>

I want to use the hrtimer's in the netem (Network Emulator) qdisc.  But the
necessary symbols aren't exported for module use.

Also needed by SystemTap.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "Stone, Joshua I" <joshua.i.stone@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent 760f1fc
Raw File
cpumask.c
#include <linux/kernel.h>
#include <linux/bitops.h>
#include <linux/cpumask.h>
#include <linux/module.h>

int __first_cpu(const cpumask_t *srcp)
{
	return min_t(int, NR_CPUS, find_first_bit(srcp->bits, NR_CPUS));
}
EXPORT_SYMBOL(__first_cpu);

int __next_cpu(int n, const cpumask_t *srcp)
{
	return min_t(int, NR_CPUS, find_next_bit(srcp->bits, NR_CPUS, n+1));
}
EXPORT_SYMBOL(__next_cpu);

/*
 * Find the highest possible smp_processor_id()
 *
 * Note: if we're prepared to assume that cpu_possible_map never changes
 * (reasonable) then this function should cache its return value.
 */
int highest_possible_processor_id(void)
{
	unsigned int cpu;
	unsigned highest = 0;

	for_each_cpu_mask(cpu, cpu_possible_map)
		highest = cpu;
	return highest;
}
EXPORT_SYMBOL(highest_possible_processor_id);

int __any_online_cpu(const cpumask_t *mask)
{
	int cpu;

	for_each_cpu_mask(cpu, *mask) {
		if (cpu_online(cpu))
			break;
	}
	return cpu;
}
EXPORT_SYMBOL(__any_online_cpu);
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