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authorPaul Mundt <lethal@linux-sh.org>2009-12-18 06:40:56 +0100
committerPaul Mundt <lethal@linux-sh.org>2009-12-21 03:57:33 +0100
commit73a38b839b9295216e8d44dabf54de88270e77b8 (patch)
tree977d40b6198a8a6b5e5c28590b22610993a78b51 /arch/sh/kernel
parentsh: Restore bl bit toggling in idle loop. (diff)
downloadlinux-73a38b839b9295216e8d44dabf54de88270e77b8.tar.xz
linux-73a38b839b9295216e8d44dabf54de88270e77b8.zip
sh: Only use bl bit toggling for sleeping idle.
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>
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r--arch/sh/kernel/idle.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c
index 8e47565dcfd1..6b3d706deac1 100644
--- a/arch/sh/kernel/idle.c
+++ b/arch/sh/kernel/idle.c
@@ -62,6 +62,7 @@ void default_idle(void)
clear_thread_flag(TIF_POLLING_NRFLAG);
smp_mb__after_clear_bit();
+ set_bl_bit();
if (!need_resched()) {
local_irq_enable();
cpu_sleep();
@@ -69,6 +70,7 @@ void default_idle(void)
local_irq_enable();
set_thread_flag(TIF_POLLING_NRFLAG);
+ clear_bl_bit();
} else
poll_idle();
}
@@ -92,7 +94,6 @@ void cpu_idle(void)
check_pgt_cache();
rmb();
- set_bl_bit();
local_irq_disable();
/* Don't trace irqs off for idle */
stop_critical_timings();
@@ -103,7 +104,6 @@ void cpu_idle(void)
*/
WARN_ON(irqs_disabled());
start_critical_timings();
- clear_bl_bit();
}
tick_nohz_restart_sched_tick();