sched/migration: Move calc_load_migrate() into CPU_DYING
authorThomas Gleixner <tglx@linutronix.de>
Thu, 10 Mar 2016 11:54:16 +0000 (12:54 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Fri, 6 May 2016 12:58:25 +0000 (14:58 +0200)
It really does not matter when we fold the load for the outgoing cpu. It's
almost dead anyway, so there is no harm if we fail to fold the few
microseconds which are required for going fully away.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160310120025.328739226@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
kernel/sched/core.c

index bafc308e6d45f55871ac0b57947a6a0998417441..688e8a83208cecdc15f61086c8a871c2b4d8f21e 100644 (file)
@@ -5447,9 +5447,6 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
                migrate_tasks(rq);
                BUG_ON(rq->nr_running != 1); /* the migration thread */
                raw_spin_unlock_irqrestore(&rq->lock, flags);
-               break;
-
-       case CPU_DEAD:
                calc_load_migrate(rq);
                break;
 #endif