From: Aaro Koskinen <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== commit c796d1d97c3035cf54d4d5a9e75abd094db80e76 upstream. Limit idle ticks to total ticks. This prevents the annoying rackmeter leds fully ON / OFF blinking state that happens on fully idling G5 Xserve systems. Signed-off-by: Aaro Koskinen <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Cc: Oliver Neukum <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- drivers/macintosh/rack-meter.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c index cad0e19b47a2..0b569da3c467 100644 --- a/drivers/macintosh/rack-meter.c +++ b/drivers/macintosh/rack-meter.c @@ -225,6 +225,7 @@ static void rackmeter_do_timer(struct work_struct *work) total_idle_ticks = get_cpu_idle_time(cpu); idle_ticks = (unsigned int) (total_idle_ticks - rcpu->prev_idle); + idle_ticks = min(idle_ticks, total_ticks); rcpu->prev_idle = total_idle_ticks; /* We do a very dumb calculation to update the LEDs for now, -- 2.9.1
