// SPDX-License-Identifier: GPL-2.0#include <linux/nodemask.h>#include <linux/module.h>#include <linux/random.h> int __next_node_in(int node, const nodemask_t *srcp){	int ret = __next_node(node, srcp); 	if (ret == MAX_NUMNODES)		ret = __first_node(srcp);	return ret;}EXPORT_SYMBOL(__next_node_in); #ifdef CONFIG_NUMA/* * Return the bit number of a random bit set in the nodemask. * (returns NUMA_NO_NODE if nodemask is empty) */int node_random(const nodemask_t *maskp){	int w, bit = NUMA_NO_NODE; 	w = nodes_weight(*maskp);	if (w)		bit = bitmap_ord_to_pos(maskp->bits,			get_random_int() % w, MAX_NUMNODES);	return bit;}#endif