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authorPeter Zijlstra <peterz@infradead.org>2015-09-28 18:11:45 +0200
committerIngo Molnar <mingo@kernel.org>2015-10-06 17:08:17 +0200
commitda7142e2ed735e1c1bef5a757dc55de35c65fbd6 (patch)
tree96aeb81dff99652bb43623fca210ef08ddc57c32 /kernel/sched
parentsched/core: Robustify preemption leak checks (diff)
downloadlinux-da7142e2ed735e1c1bef5a757dc55de35c65fbd6.tar.xz
linux-da7142e2ed735e1c1bef5a757dc55de35c65fbd6.zip
sched/core: Simplify preempt_count tests
Since we stopped setting PREEMPT_ACTIVE, there is no need to mask it out of preempt_count() tests. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> 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.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index d6989f85c641..ca260cc5d881 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7486,7 +7486,7 @@ void __init sched_init(void)
#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
static inline int preempt_count_equals(int preempt_offset)
{
- int nested = (preempt_count() & ~PREEMPT_ACTIVE) + rcu_preempt_depth();
+ int nested = preempt_count() + rcu_preempt_depth();
return (nested == preempt_offset);
}