sched/debug: Print the scheduler topology group mask

In order to determine the balance_cpu (for should_we_balance()) we need
the sched_group_mask() for overlapping domains.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 6b10e0a956c75b4a47ef620b836261eed3129b9d..3d50ee38b8fb9cfad86e4b8693bc4e6c43e129de 100644 (file)
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -82,12 +82,22 @@ static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
 
                printk(KERN_CONT " %*pbl",
                       cpumask_pr_args(sched_group_cpus(group)));
+
+               if ((sd->flags & SD_OVERLAP) && !cpumask_full(sched_group_mask(group))) {
+                       printk(KERN_CONT " (mask: %*pbl)",
+                               cpumask_pr_args(sched_group_mask(group)));
+               }
+
                if (group->sgc->capacity != SCHED_CAPACITY_SCALE) {
-                       printk(KERN_CONT " (cpu_capacity = %lu)",
+                       printk(KERN_CONT " (cpu_capacity: %lu)",
                                group->sgc->capacity);
                }
 
                group = group->next;
+
+               if (group != sd->groups)
+                       printk(KERN_CONT ",");
+
        } while (group != sd->groups);
        printk(KERN_CONT "\n");