diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2016-12-15 13:21:58 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-01-14 11:29:57 +0100 |
| commit | 555570d744f8150d3fce6083f144026cd1e63627 (patch) | |
| tree | e0db4da7dd7949d80a562ad621e08100194688fe | |
| parent | 12907fbb1a691807bb0420a27126e15934cb7954 (diff) | |
sched/clock: Update static_key usage
sched_clock was still using the deprecated static_key interface.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | kernel/sched/clock.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c index e85a725e5c34..5d6dd38b449c 100644 --- a/kernel/sched/clock.c +++ b/kernel/sched/clock.c @@ -78,19 +78,17 @@ EXPORT_SYMBOL_GPL(sched_clock); __read_mostly int sched_clock_running; #ifdef CONFIG_HAVE_UNSTABLE_SCHED_CLOCK -static struct static_key __sched_clock_stable = STATIC_KEY_INIT; +static DEFINE_STATIC_KEY_FALSE(__sched_clock_stable); static int __sched_clock_stable_early; int sched_clock_stable(void) { - return static_key_false(&__sched_clock_stable); + return static_branch_likely(&__sched_clock_stable); } static void __set_sched_clock_stable(void) { - if (!sched_clock_stable()) - static_key_slow_inc(&__sched_clock_stable); - + static_branch_enable(&__sched_clock_stable); tick_dep_clear(TICK_DEP_BIT_CLOCK_UNSTABLE); } @@ -109,9 +107,7 @@ void set_sched_clock_stable(void) static void __clear_sched_clock_stable(struct work_struct *work) { /* XXX worry about clock continuity */ - if (sched_clock_stable()) - static_key_slow_dec(&__sched_clock_stable); - + static_branch_disable(&__sched_clock_stable); tick_dep_set(TICK_DEP_BIT_CLOCK_UNSTABLE); } |