cpumask: use cpumask_next_wrap() where appropriate

Now that cpumask_next{_and}_wrap() is wired to generic
find_next_bit_wrap(), we can use it in cpumask_any{_and}_distribute().

This automatically makes the cpumask_*_distribute() functions to use
small_cpumask_bits instead of nr_cpumask_bits, which itself is a good
optimization.

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

Author: YuryNorov

lib/cpumask.c

@@ -171,8 +171,7 @@ unsigned int cpumask_any_and_distribute(const struct cpumask *src1p,
 	/* NOTE: our first selection will skip 0. */
 	prev = __this_cpu_read(distribute_cpu_mask_prev);
 
-	next = find_next_and_bit_wrap(cpumask_bits(src1p), cpumask_bits(src2p),
-					nr_cpumask_bits, prev + 1);
+	next = cpumask_next_and_wrap(prev, src1p, src2p);
 	if (next < nr_cpu_ids)
 		__this_cpu_write(distribute_cpu_mask_prev, next);
 
@@ -192,7 +191,7 @@ unsigned int cpumask_any_distribute(const struct cpumask *srcp)
 
 	/* NOTE: our first selection will skip 0. */
 	prev = __this_cpu_read(distribute_cpu_mask_prev);
-	next = find_next_bit_wrap(cpumask_bits(srcp), nr_cpumask_bits, prev + 1);
+	next = cpumask_next_wrap(prev, srcp);
 	if (next < nr_cpu_ids)
 		__this_cpu_write(distribute_cpu_mask_prev, next);