From: Thomas Gleixner Date: Wed, 25 Mar 2015 12:08:27 +0000 (+0100) Subject: clockevents: Remove extra local_irq_save() in clockevents_exchange_device() X-Git-Tag: v4.1-rc1~184^2~52 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=db6f672ef11d7a3c5aa128a3c3e57c92580a25f7;p=karo-tx-linux.git clockevents: Remove extra local_irq_save() in clockevents_exchange_device() Called with 'clockevents_lock' held and interrupts disabled already. Signed-off-by: Thomas Gleixner Signed-off-by: Rafael J. Wysocki Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/51005827.yXt5tjZMBs@vostro.rjw.lan Signed-off-by: Ingo Molnar --- diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 3531beecbe95..b73002718536 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -595,14 +595,12 @@ void clockevents_handle_noop(struct clock_event_device *dev) * @old: device to release (can be NULL) * @new: device to request (can be NULL) * - * Called from the notifier chain. clockevents_lock is held already + * Called from various tick functions with clockevents_lock held and + * interrupts disabled. */ void clockevents_exchange_device(struct clock_event_device *old, struct clock_event_device *new) { - unsigned long flags; - - local_irq_save(flags); /* * Caller releases a clock event device. We queue it into the * released list and do a notify add later. @@ -618,7 +616,6 @@ void clockevents_exchange_device(struct clock_event_device *old, BUG_ON(new->state != CLOCK_EVT_STATE_DETACHED); clockevents_shutdown(new); } - local_irq_restore(flags); } /**