cpumask: add non-atomic __assign_cpu()

Similarly to atomic, add a non-atomic version.

Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>

Author: YuryNorov

include/linux/cpumask.h

@@ -1074,6 +1074,9 @@ void init_cpu_possible(const struct cpumask *src);
 #define assign_cpu(cpu, mask, val)	\
 	assign_bit(cpumask_check(cpu), cpumask_bits(mask), (val))
 
+#define __assign_cpu(cpu, mask, val)	\
+	__assign_bit(cpumask_check(cpu), cpumask_bits(mask), (val))
+
 #define set_cpu_possible(cpu, possible)	assign_cpu((cpu), &__cpu_possible_mask, (possible))
 #define set_cpu_enabled(cpu, enabled)	assign_cpu((cpu), &__cpu_enabled_mask, (enabled))
 #define set_cpu_present(cpu, present)	assign_cpu((cpu), &__cpu_present_mask, (present))