1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/nodemask.h>
3 #include <linux/module.h>
4 #include <linux/random.h>
6 int __next_node_in(int node, const nodemask_t *srcp)
8 int ret = __next_node(node, srcp);
10 if (ret == MAX_NUMNODES)
11 ret = __first_node(srcp);
14 EXPORT_SYMBOL(__next_node_in);
18 * Return the bit number of a random bit set in the nodemask.
19 * (returns NUMA_NO_NODE if nodemask is empty)
21 int node_random(const nodemask_t *maskp)
23 int w, bit = NUMA_NO_NODE;
25 w = nodes_weight(*maskp);
27 bit = bitmap_ord_to_pos(maskp->bits,
28 get_random_int() % w, MAX_NUMNODES);