diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2014-08-16 17:47:18 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2014-09-13 18:34:44 +0200 |
| commit | a80e49e2cc3145af014a8ae44f575829cc236192 (patch) | |
| tree | 61ee13c12752cf1e7f4f2aa9ecbcce9838f6817e /kernel/time | |
| parent | 2ce7598c9a453e0acd0e07be7be3f5eb39608ebd (diff) | |
nohz: Move nohz full init call to tick init
This way we unbloat a bit main.c and more importantly we initialize
nohz full after init_IRQ(). This dependency will be needed in further
patches because nohz full needs irq work to raise its own IRQ.
Information about the support for this ability on ARM64 is obtained on
init_IRQ() which initialize the pointer to __smp_call_function.
Since tick_init() is called right after init_IRQ(), this is a good place
to call tick_nohz_init() and prepare for that dependency.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/time')
| -rw-r--r-- | kernel/time/tick-common.c | 1 | ||||
| -rw-r--r-- | kernel/time/tick-internal.h | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c index 0a0608edeb2..052b4b53c3d 100644 --- a/kernel/time/tick-common.c +++ b/kernel/time/tick-common.c @@ -400,4 +400,5 @@ void tick_resume(void) void __init tick_init(void) { tick_broadcast_init(); + tick_nohz_init(); } diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h index c19c1d84b6f..366aeb4f2c6 100644 --- a/kernel/time/tick-internal.h +++ b/kernel/time/tick-internal.h @@ -99,6 +99,13 @@ static inline int tick_broadcast_oneshot_active(void) { return 0; } static inline bool tick_broadcast_oneshot_available(void) { return false; } #endif /* !TICK_ONESHOT */ +/* NO_HZ_FULL internal */ +#ifdef CONFIG_NO_HZ_FULL +extern void tick_nohz_init(void); +# else +static inline void tick_nohz_init(void) { } +#endif + /* * Broadcasting support */ |