Add trace functions to ARM idle loop and also move the
tick_nohz_restart_sched_tick() after the local_irq_disable() as is
done on x86.
Signed-off-by: Kevin Hilman <[email protected]>
---
arch/arm/kernel/process.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
Index: linux-2.6/arch/arm/kernel/process.c
===================================================================
--- linux-2.6.orig/arch/arm/kernel/process.c
+++ linux-2.6/arch/arm/kernel/process.c
@@ -165,11 +165,13 @@ void cpu_idle(void)
while (!need_resched() && !need_resched_delayed())
idle();
leds_event(led_idle_end);
- tick_nohz_restart_sched_tick();
local_irq_disable();
+ trace_preempt_exit_idle();
+ tick_nohz_restart_sched_tick();
__preempt_enable_no_resched();
__schedule();
preempt_disable();
+ trace_preempt_enter_idle();
local_irq_enable();
}
}
--
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
