sched: Create for_each_sd_topology()

For loop for traversing sched_domain_topology was used at multiple placed in
core.c. This patch removes code redundancy by creating for_each_sd_topology().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/e0e04542f54e9464bd9da54f5ccfe62ec6c4c0bc.1370861520.git.viresh.kumar@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 88c2c0ee5a52..547b7d3ff893 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5565,6 +5565,9 @@ static struct sched_domain_topology_level default_topology[] = {
 
 static struct sched_domain_topology_level *sched_domain_topology = default_topology;
 
+#define for_each_sd_topology(tl)                        \
+        for (tl = sched_domain_topology; tl->init; tl++)
+
 #ifdef CONFIG_NUMA
 
 static int sched_domains_numa_levels;
@@ -5862,7 +5865,7 @@ static int __sdt_alloc(const struct cpumask *cpu_map)
         struct sched_domain_topology_level *tl;
         int j;
 
-        for (tl = sched_domain_topology; tl->init; tl++) {
+        for_each_sd_topology(tl) {
                 struct sd_data *sdd = &tl->data;
 
                 sdd->sd = alloc_percpu(struct sched_domain *);
@@ -5915,7 +5918,7 @@ static void __sdt_free(const struct cpumask *cpu_map)
         struct sched_domain_topology_level *tl;
         int j;
 
-        for (tl = sched_domain_topology; tl->init; tl++) {
+        for_each_sd_topology(tl) {
                 struct sd_data *sdd = &tl->data;
 
                 for_each_cpu(j, cpu_map) {
@@ -5983,7 +5986,7 @@ static int build_sched_domains(const struct cpumask *cpu_map,
                 struct sched_domain_topology_level *tl;
 
                 sd = NULL;
-                for (tl = sched_domain_topology; tl->init; tl++) {
+                for_each_sd_topology(tl) {
                         sd = build_sched_domain(tl, cpu_map, attr, sd, i);
                         if (tl == sched_domain_topology)
                                 *per_cpu_ptr(d.sd, i) = sd;