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authorPeter Zijlstra <peterz@infradead.org>2015-07-24 15:03:40 +0200
committerIngo Molnar <mingo@kernel.org>2015-08-03 11:34:14 +0200
commite33886b38cc82a9fc3b2d655dfc7f50467594138 (patch)
treef28d2cdfd09a3220231ffaf085abfad85d92f45a /kernel
parent7dcfd915bae51571bcc339d8e3dda027287880e5 (diff)
downloadop-kernel-dev-e33886b38cc82a9fc3b2d655dfc7f50467594138.zip
op-kernel-dev-e33886b38cc82a9fc3b2d655dfc7f50467594138.tar.gz
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')
-rw-r--r--kernel/sched/core.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 78b4bad10..66ae8ba 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) { };
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