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authorAaro Koskinen <aaro.koskinen@iki.fi>2016-04-10 22:53:47 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-04-12 21:05:20 +1000
commitc796d1d97c3035cf54d4d5a9e75abd094db80e76 (patch)
treed20729e4de03e9b5826a53cd5e357c24b88863d7 /drivers/macintosh
parent7f92bc5694557dee4cefa90df27feec16c7b62da (diff)
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drivers: macintosh: rack-meter: limit idle ticks to total ticks
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>
Diffstat (limited to 'drivers/macintosh')
-rw-r--r--drivers/macintosh/rack-meter.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index caaec654d7ea..ba7e330640fb 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -227,6 +227,7 @@ 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,