kernel/sched/topology.c

938 	/* We must not have empty masks here */
1897 	struct cpumask ***masks;
1959 	masks = kzalloc(sizeof(void *) * nr_levels, GFP_KERNEL);
1960 	if (!masks)
1968 		masks[i] = kzalloc(nr_node_ids * sizeof(void *), GFP_KERNEL);
1969 		if (!masks[i])
1979 			masks[i][j] = mask;
1992 	rcu_assign_pointer(sched_domains_numa_masks, masks);
2034 	struct cpumask ***masks;
2042 	masks = sched_domains_numa_masks;
2044 	if (distances || masks) {
2049 		for (i = 0; i < nr_levels && masks; i++) {
2050 			if (!masks[i])
2053 				kfree(masks[i][j]);
2054 			kfree(masks[i]);
2056 		kfree(masks);
2094 			/* Set ourselves in the remote node's masks */
2124 	struct cpumask ***masks;
2127 	masks = rcu_dereference(sched_domains_numa_masks);
2128 	if (!masks)
2131 		if (!masks[i][j])
2133 		cpu = cpumask_any_and_distribute(cpus, masks[i][j]);
2147 	struct cpumask ***masks;
2161 	if (b == k->masks) {
2199 	k.masks = rcu_dereference(sched_domains_numa_masks);
2200 	if (!k.masks)
2203 	hop_masks = bsearch(&k, k.masks, sched_domains_numa_levels, sizeof(k.masks[0]), hop_cmp);
2204 	hop = hop_masks	- k.masks;
2207 		cpumask_nth_and_andnot(cpu - k.w, cpus, k.masks[hop][node], k.masks[hop-1][node]) :
2208 		cpumask_nth_and(cpu, cpus, k.masks[0][node]);
2228  * distances and masks are handled.
2230  * during the lifetime of the system (offline nodes are taken out of the masks).
2234 	struct cpumask ***masks;
2239 	masks = rcu_dereference(sched_domains_numa_masks);
2240 	if (!masks)
2243 	return masks[hops][node];
2381  * Ensure topology masks are sane, i.e. there are no conflicts (overlaps) for
2712  * The masks don't intersect (don't overlap.) We should setup one