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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-05-20 20:06:24 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-05-20 20:08:05 +0200 |
| commit | 250f972d85effad5b6e10da4bbd877e6a4b503b6 (patch) | |
| tree | 007393a6fc6439af7e0121dd99a6f9f9fb8405bc /kernel/time/tick-broadcast.c | |
| parent | 7372b0b122af0f6675f3ab65bfd91c8a438e0480 (diff) | |
| parent | bbe7b8bef48c567f5ff3f6041c1fb011292e8f12 (diff) | |
| download | blackbird-op-linux-250f972d85effad5b6e10da4bbd877e6a4b503b6.tar.gz blackbird-op-linux-250f972d85effad5b6e10da4bbd877e6a4b503b6.zip | |
Merge branch 'timers/urgent' into timers/core
Reason: Get upstream fixes and kfree_rcu which is necessary for a
follow up patch.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time/tick-broadcast.c')
| -rw-r--r-- | kernel/time/tick-broadcast.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c index 827e0f862da4..c7218d132738 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -524,10 +524,11 @@ static void tick_broadcast_init_next_event(struct cpumask *mask, */ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { + int cpu = smp_processor_id(); + /* Set it up only once ! */ if (bc->event_handler != tick_handle_oneshot_broadcast) { int was_periodic = bc->mode == CLOCK_EVT_MODE_PERIODIC; - int cpu = smp_processor_id(); bc->event_handler = tick_handle_oneshot_broadcast; clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT); @@ -553,6 +554,15 @@ void tick_broadcast_setup_oneshot(struct clock_event_device *bc) tick_broadcast_set_event(tick_next_period, 1); } else bc->next_event.tv64 = KTIME_MAX; + } else { + /* + * The first cpu which switches to oneshot mode sets + * the bit for all other cpus which are in the general + * (periodic) broadcast mask. So the bit is set and + * would prevent the first broadcast enter after this + * to program the bc device. + */ + tick_broadcast_clear_oneshot(cpu); } } |
