Commit af7bdbaf authored Feb 21, 2013 by Thomas Gleixner

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 <tglx@linutronix.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>

parent facd8b80

kernel/time/tick-sched.c

+1 −6

Original line number	Diff line number	Diff line
		@@ -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*/
		menu_hrtimer_cancel();
		__tick_nohz_idle_enter(ts);

		local_irq_restore(flags);
		}

		/**