X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fsched_rt.c;h=299d012b4394e8c62d3a677502e41c41802ab444;hb=6e15cf04860074ad032e88c306bea656bbdd0f22;hp=c79dc7844012d7b69926298673bdffc6fa3ff79b;hpb=be0ea69674ed95e1e98cb3687a241badc756d228;p=linux-2.6-omap-h63xx.git

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index c79dc784401..299d012b439 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -1122,12 +1122,13 @@ static struct task_struct *pick_next_highest_task_rt(struct rq *rq, int cpu)
 
 static DEFINE_PER_CPU(cpumask_var_t, local_cpu_mask);
 
-static inline int pick_optimal_cpu(int this_cpu, cpumask_t *mask)
+static inline int pick_optimal_cpu(int this_cpu,
+				   const struct cpumask *mask)
 {
 	int first;
 
 	/* "this_cpu" is cheaper to preempt than a remote processor */
-	if ((this_cpu != -1) && cpu_isset(this_cpu, *mask))
+	if ((this_cpu != -1) && cpumask_test_cpu(this_cpu, mask))
 		return this_cpu;
 
 	first = cpumask_first(mask);
@@ -1143,6 +1144,7 @@ static int find_lowest_rq(struct task_struct *task)
 	struct cpumask *lowest_mask = __get_cpu_var(local_cpu_mask);
 	int this_cpu = smp_processor_id();
 	int cpu      = task_cpu(task);
+	cpumask_var_t domain_mask;
 
 	if (task->rt.nr_cpus_allowed == 1)
 		return -1; /* No other targets possible */
@@ -1175,19 +1177,25 @@ static int find_lowest_rq(struct task_struct *task)
 	if (this_cpu == cpu)
 		this_cpu = -1; /* Skip this_cpu opt if the same */
 
-	for_each_domain(cpu, sd) {
-		if (sd->flags & SD_WAKE_AFFINE) {
-			cpumask_t domain_mask;
-			int       best_cpu;
+	if (alloc_cpumask_var(&domain_mask, GFP_ATOMIC)) {
+		for_each_domain(cpu, sd) {
+			if (sd->flags & SD_WAKE_AFFINE) {
+				int best_cpu;
 
-			cpumask_and(&domain_mask, sched_domain_span(sd),
-				    lowest_mask);
+				cpumask_and(domain_mask,
+					    sched_domain_span(sd),
+					    lowest_mask);
 
-			best_cpu = pick_optimal_cpu(this_cpu,
-						    &domain_mask);
-			if (best_cpu != -1)
-				return best_cpu;
+				best_cpu = pick_optimal_cpu(this_cpu,
+							    domain_mask);
+
+				if (best_cpu != -1) {
+					free_cpumask_var(domain_mask);
+					return best_cpu;
+				}
+			}
 		}
+		free_cpumask_var(domain_mask);
 	}
 
 	/*