Commit 012b1043 authored by Yury Norov [NVIDIA]'s avatar Yury Norov [NVIDIA] Committed by Yury Norov
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cpumask: introduce cpumask_random() 



Propagate find_random_bit() to cpumask API.

CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatar"Yury Norov [NVIDIA]" <yury.norov@gmail.com>
parent c56f97c5

include/linux/cpumask.h

+12 −0
Original line number Diff line number Diff line
@@ -354,6 +354,18 @@ unsigned int cpumask_next_wrap(int n, const struct cpumask *src) 
	return find_next_bit_wrap(cpumask_bits(src), small_cpumask_bits, n + 1);

}



/**

 * cpumask_random - get random cpu in *src.

 * @src: cpumask pointer

 *

 * Return: random set bit, or >= nr_cpu_ids if @src is empty.

 */

static __always_inline

unsigned int cpumask_random(const struct cpumask *src)

{

	return find_random_bit(cpumask_bits(src), nr_cpu_ids);

}



/**

 * for_each_cpu - iterate over every cpu in a mask

 * @cpu: the (optionally unsigned) integer iterator