From af7bdbafe3812af406ce07631effd2b96aae2dba Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 21 Feb 2013 18:21:30 +0100 Subject: [PATCH] Revert "nohz: Make tick_nohz_irq_exit() irq safe" This reverts commit 351429b2e62b6545bb10c756686393f29ba268a1. The extra local_irq_save() is not longer needed as the call site now always calls with interrupts disabled. Signed-off-by: Thomas Gleixner Cc: Frederic Weisbecker Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Paul E. McKenney Cc: Linus Torvalds --- kernel/time/tick-sched.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 520592a..314b9ee 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -565,19 +565,14 @@ void tick_nohz_idle_enter(void) */ void tick_nohz_irq_exit(void) { - unsigned long flags; struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched); if (!ts->inidle) return; - local_irq_save(flags); - - /* Cancel the timer because CPU already waken up from the C-states */ + /* Cancel the timer because CPU already waken up from the C-states*/ menu_hrtimer_cancel(); __tick_nohz_idle_enter(ts); - - local_irq_restore(flags); } /** -- 2.7.4