Merge pull request #328 from sched-ext/rusty_cpumask_overlap

rusty: Use cpumask kfuncs in cpumask_intersects_domain()

scheds/rust/scx_rusty/src/bpf/main.bpf.c

@@ -1144,17 +1144,18 @@ void BPF_STRUCT_OPS(rusty_enqueue, struct task_struct *p, u64 enq_flags)
 
 static bool cpumask_intersects_domain(const struct cpumask *cpumask, u32 dom_id)
 {
-	s32 cpu;
+	struct dom_ctx *domc;
+	struct bpf_cpumask *dmask;
+
+	domc = lookup_dom_ctx(dom_id);
+	if (!domc)
+		return false;
 
-	if (dom_id >= MAX_DOMS)
+	dmask = domc->cpumask;
+	if (!dmask)
 		return false;
 
-	bpf_for(cpu, 0, nr_cpus_possible) {
-		if (bpf_cpumask_test_cpu(cpu, cpumask) &&
-		    (dom_cpumasks[dom_id][cpu / 64] & (1LLU << (cpu % 64))))
-			return true;
-	}
-	return false;
+	return bpf_cpumask_intersects(cpumask, (const struct cpumask *)dmask);
 }
 
 u32 dom_node_id(u32 dom_id)