From d0f140e03e38dc553a0bb61611c15fcede671f23 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 10 Jun 2010 16:02:32 +0200 Subject: microblaze: Do not trace cpu_relax function IRQsoff tracer requires to protect cpu_idle function to get correct timing report. Signed-off-by: Michal Simek --- arch/microblaze/kernel/process.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'arch/microblaze/kernel/process.c') diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c index 09bed44dfcd3..ba7c4b16ed35 100644 --- a/arch/microblaze/kernel/process.c +++ b/arch/microblaze/kernel/process.c @@ -76,8 +76,11 @@ __setup("hlt", hlt_setup); void default_idle(void) { if (likely(hlt_counter)) { - while (!need_resched()) - cpu_relax(); + local_irq_disable(); + stop_critical_timings(); + cpu_relax(); + start_critical_timings(); + local_irq_enable(); } else { clear_thread_flag(TIF_POLLING_NRFLAG); smp_mb__after_clear_bit(); -- cgit v1.2.3