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| author |   Peter Zijlstra <peterz@infradead.org> | 2015-07-24 15:03:40 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2015-08-03 11:34:14 +0200 |
| commit | e33886b38cc82a9fc3b2d655dfc7f50467594138 (patch) | |
| tree | f28d2cdfd09a3220231ffaf085abfad85d92f45a /kernel/sched | |
| parent | jump_label: Add jump_entry_key() helper (diff) | |
| download | linux-dev-e33886b38cc82a9fc3b2d655dfc7f50467594138.tar.xz linux-dev-e33886b38cc82a9fc3b2d655dfc7f50467594138.zip | |
locking/static_keys: Add static_key_{en,dis}able() helpers
Add two helpers to make it easier to treat the refcount as boolean.
Suggested-by: Jason Baron <jasonbaron0@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/core.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 78b4bad10081..66ae8baf42fe 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -164,14 +164,12 @@ struct static_key sched_feat_keys[__SCHED_FEAT_NR] = { static void sched_feat_disable(int i) { - if (static_key_enabled(&sched_feat_keys[i])) - static_key_slow_dec(&sched_feat_keys[i]); + static_key_disable(&sched_feat_keys[i]); } static void sched_feat_enable(int i) { - if (!static_key_enabled(&sched_feat_keys[i])) - static_key_slow_inc(&sched_feat_keys[i]); + static_key_enable(&sched_feat_keys[i]); } #else static void sched_feat_disable(int i) { }; |