// SPDX-License-Identifier: GPL-2.0 #include <linux/nodemask.h> #include <linux/module.h> #include <linux/random.h> unsigned int __next_node_in(int node, const nodemask_t *srcp) { unsigned 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