Auto-update from upstream

1 files changed, 13 insertions, 19 deletions

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index d7f4d0c95737..8ab1b4e518b8 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -627,6 +627,14 @@ static int validate_change(const struct cpuset *cur, const struct cpuset *trial)
  * Call with cpuset_sem held.  May nest a call to the
  * lock_cpu_hotplug()/unlock_cpu_hotplug() pair.
  */
+
+/*
+ * Hack to avoid 2.6.13 partial node dynamic sched domain bug.
+ * Disable letting 'cpu_exclusive' cpusets define dynamic sched
+ * domains, until the sched domain can handle partial nodes.
+ * Remove this #if hackery when sched domains fixed.
+ */
+#if 0
 static void update_cpu_domains(struct cpuset *cur)
 {
         struct cpuset *c, *par = cur->parent;
@@ -636,25 +644,6 @@ static void update_cpu_domains(struct cpuset *cur)
                 return;
 
         /*
-         * Hack to avoid 2.6.13 partial node dynamic sched domain bug.
-         * Require the 'cpu_exclusive' cpuset to include all (or none)
-         * of the CPUs on each node, or return w/o changing sched domains.
-         * Remove this hack when dynamic sched domains fixed.
-         */
-        {
-                int i, j;
-
-                for_each_cpu_mask(i, cur->cpus_allowed) {
-                        cpumask_t mask = node_to_cpumask(cpu_to_node(i));
-
-                        for_each_cpu_mask(j, mask) {
-                                if (!cpu_isset(j, cur->cpus_allowed))
-                                        return;
-                        }
-                }
-        }
-
-        /*
          * Get all cpus from parent's cpus_allowed not part of exclusive
          * children
          */
@@ -686,6 +675,11 @@ static void update_cpu_domains(struct cpuset *cur)
         partition_sched_domains(&pspan, &cspan);
         unlock_cpu_hotplug();
 }
+#else
+static void update_cpu_domains(struct cpuset *cur)
+{
+}
+#endif
 
 static int update_cpumask(struct cpuset *cs, char *buf)
 {