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| author | Tony Lindgren <tony@atomide.com> | 2011-05-24 00:45:06 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2011-05-24 00:45:06 -0700 |
| commit | 9b28b11e2a648f07c8481b9666ccf1c088e1ab74 (patch) | |
| tree | ac3db2d4ae69e393d8423bb8c9304c75023dc805 /kernel/time/tick-broadcast.c | |
| parent | b7679ab3f70482ff4b75a8c735c8224ebedb6020 (diff) | |
| parent | 99aa18278e867574d72201b806f82ace07d4804b (diff) | |
| download | blackbird-op-linux-9b28b11e2a648f07c8481b9666ccf1c088e1ab74.tar.gz blackbird-op-linux-9b28b11e2a648f07c8481b9666ccf1c088e1ab74.zip | |
Merge branch 'for_2.6.40/pm-cleanup' of ssh://master.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-linus
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 da800ffa810c..723c7637e55a 100644 --- a/kernel/time/tick-broadcast.c +++ b/kernel/time/tick-broadcast.c @@ -522,10 +522,11 @@ 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); @@ -551,6 +552,15 @@ 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); } } |
