sched: touch softlockup watchdog after idling

touch softlockup watchdog after idling.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

+1
+1
kernel/sched.c
··· 668 668 struct rq *rq = cpu_rq(smp_processor_id()); 669 669 u64 now = sched_clock(); 670 670 671 + touch_softlockup_watchdog(); 671 672 rq->idle_clock += delta_ns; 672 673 /* 673 674 * Override the previous timestamp and ignore all