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Commit 3147093e authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Restore bl bit toggling in idle loop. 



This fixes up some crashes with IRQs racing the need_resched() test under
QEMU.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 2f7bb2df

arch/sh/kernel/idle.c

+2 −0
Original line number Diff line number Diff line
@@ -92,6 +92,7 @@ void cpu_idle(void) 
			check_pgt_cache();

			rmb();



			set_bl_bit();

			local_irq_disable();

			/* Don't trace irqs off for idle */

			stop_critical_timings();
@@ -102,6 +103,7 @@ void cpu_idle(void) 
			 */

			WARN_ON(irqs_disabled());

			start_critical_timings();

			clear_bl_bit();

		}



		tick_nohz_restart_sched_tick();