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authorFrederic Weisbecker <frederic@kernel.org>2017-11-06 16:01:22 +0100
committerIngo Molnar <mingo@kernel.org>2017-11-08 11:13:50 +0100
commit83efcbd028ad3aec36b5a3882cfa32490c135df7 (patch)
tree069ac8a7cf900c5e1ea53e3a4ed89258cddb148b /kernel/smp.c
parenttimers/hrtimer: Use lockdep to assert IRQs are disabled/enabled (diff)
downloadlinux-83efcbd028ad3aec36b5a3882cfa32490c135df7.tar.xz
linux-83efcbd028ad3aec36b5a3882cfa32490c135df7.zip
smp/core: Use lockdep to assert IRQs are disabled/enabled
Use lockdep to check that IRQs are enabled or disabled as expected. This way the sanity check only shows overhead when concurrency correctness debug code is enabled. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: David S . Miller <davem@davemloft.net> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/1509980490-4285-7-git-send-email-frederic@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/smp.c')
-rw-r--r--kernel/smp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/smp.c b/kernel/smp.c
index c94dd85c8d41..084c8b3a2681 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -213,7 +213,7 @@ static void flush_smp_call_function_queue(bool warn_cpu_offline)
call_single_data_t *csd, *csd_next;
static bool warned;
- WARN_ON(!irqs_disabled());
+ lockdep_assert_irqs_disabled();
head = this_cpu_ptr(&call_single_queue);
entry = llist_del_all(head);