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sh: Only use bl bit toggling for sleeping idle.

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We don't actually require this in the cpu_relax() polling case, so just
cuddle these around the sleeping version.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2009-12-18 14:40:56 +09:00
parent 3147093e1d
commit 73a38b839b
1 changed files with 2 additions and 2 deletions
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4
arch/sh/kernel/idle.c
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@@ -62,6 +62,7 @@ void default_idle(void)
clear_thread_flag(TIF_POLLING_NRFLAG); clear_thread_flag(TIF_POLLING_NRFLAG);
smp_mb__after_clear_bit(); smp_mb__after_clear_bit();
set_bl_bit();
if (!need_resched()) { if (!need_resched()) {
local_irq_enable(); local_irq_enable();
cpu_sleep(); cpu_sleep();
@@ -69,6 +70,7 @@ void default_idle(void)
local_irq_enable(); local_irq_enable();
set_thread_flag(TIF_POLLING_NRFLAG); set_thread_flag(TIF_POLLING_NRFLAG);
clear_bl_bit();
} else } else
poll_idle(); poll_idle();
} }
@@ -92,7 +94,6 @@ void cpu_idle(void)
check_pgt_cache(); check_pgt_cache();
rmb(); rmb();
set_bl_bit();
local_irq_disable(); local_irq_disable();
/* Don't trace irqs off for idle */ /* Don't trace irqs off for idle */
stop_critical_timings(); stop_critical_timings();
@@ -103,7 +104,6 @@ void cpu_idle(void)
*/ */
WARN_ON(irqs_disabled()); WARN_ON(irqs_disabled());
start_critical_timings(); start_critical_timings();
clear_bl_bit();
} }
tick_nohz_restart_sched_tick(); tick_nohz_restart_sched_tick();