From 777a45b458660b18d7d7c3e0d874d08650c99cd2 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Fri, 3 Nov 2017 13:20:54 -0400 Subject: [PATCH 1/1] arch/tile: Implement ->set_state_oneshot_stopped() set_state_oneshot_stopped() is called by the clkevt core, when the next event is required at an expiry time of 'KTIME_MAX'. This normally happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes. This patch makes the clockevent device to stop on such an event, to avoid spurious interrupts, as explained by: commit 8fff52fd5093 ("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state"). Signed-off-by: Chris Metcalf --- arch/tile/kernel/time.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c index 6643ffbc0615..f95d65f3162b 100644 --- a/arch/tile/kernel/time.c +++ b/arch/tile/kernel/time.c @@ -162,6 +162,7 @@ static DEFINE_PER_CPU(struct clock_event_device, tile_timer) = { .set_next_event = tile_timer_set_next_event, .set_state_shutdown = tile_timer_shutdown, .set_state_oneshot = tile_timer_shutdown, + .set_state_oneshot_stopped = tile_timer_shutdown, .tick_resume = tile_timer_shutdown, }; -- 2.34.1