* [PATCH 01/02 -rt] Allow for HRTIMER_RESTART in a CB_IRQSAFE callback.
@ 2006-04-03 15:24 Steven Rostedt
0 siblings, 0 replies; only message in thread
From: Steven Rostedt @ 2006-04-03 15:24 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: Ingo Molnar, john stultz, LKML, rostedt
This patch simply requeues a CB if HRTIMER_RESTART is set in CB_IRQSAFE
hrtimer_interrupt.
-- Steve
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Index: linux-2.6.16-rt12/kernel/hrtimer.c
===================================================================
--- linux-2.6.16-rt12.orig/kernel/hrtimer.c 2006-04-02 16:06:52.000000000 -0400
+++ linux-2.6.16-rt12/kernel/hrtimer.c 2006-04-03 10:57:18.000000000 -0400
@@ -838,8 +838,10 @@ int hrtimer_interrupt(void)
if (timer->mode == HRTIMER_CB_IRQSAFE) {
int ret = timer->function(timer);
- BUG_ON(ret != HRTIMER_NORESTART);
- timer->node.rb_parent = HRTIMER_INACTIVE;
+ if (ret == HRTIMER_RESTART)
+ enqueue_hrtimer(timer, base);
+ else
+ timer->node.rb_parent = HRTIMER_INACTIVE;
} else {
hrtimer_add_cb_pending(timer, base);
raise = 1;
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