| From | Jiri Slaby <> | Subject | [PATCH 3.12 18/88] drivers: macintosh: rack-meter: limit idle ticks to total ticks | Date | Thu, 14 Jul 2016 10:15:10 +0200 |
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From: Aaro Koskinen <aaro.koskinen@iki.fi>
3.12-stable review patch. If anyone has any objections, please let me know.
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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 <aaro.koskinen@iki.fi> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- 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
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