Provide method for non-essential or non-critical code to warn of
invariant errors.
CC: Ingo Molnar <mingo@xxxxxxxxxx>
CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
---
include/linux/spinlock.h | 1 +
include/linux/spinlock_api_smp.h | 1 +
include/linux/spinlock_api_up.h | 1 +
3 files changed, 3 insertions(+)
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 3f2867f..8a9aaf1 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -394,6 +394,7 @@ static inline int spin_can_lock(spinlock_t *lock)
}
#define assert_spin_locked(lock) assert_raw_spin_locked(&(lock)->rlock)
+#define warn_not_spin_locked(lock) warn_not_raw_spin_locked(&(lock)->rlock)
/*
* Pull the atomic_t declaration:
diff --git a/include/linux/spinlock_api_smp.h b/include/linux/spinlock_api_smp.h
index 42dfab8..0ddd499 100644
--- a/include/linux/spinlock_api_smp.h
+++ b/include/linux/spinlock_api_smp.h
@@ -18,6 +18,7 @@
int in_lock_functions(unsigned long addr);
#define assert_raw_spin_locked(x) BUG_ON(!raw_spin_is_locked(x))
+#define warn_not_raw_spin_locked(x) WARN_ON_ONCE(!raw_spin_is_locked(x))
void __lockfunc _raw_spin_lock(raw_spinlock_t *lock) __acquires(lock);
void __lockfunc _raw_spin_lock_nested(raw_spinlock_t *lock, int subclass)
diff --git a/include/linux/spinlock_api_up.h b/include/linux/spinlock_api_up.h
index d0d1888..f890f12 100644
--- a/include/linux/spinlock_api_up.h
+++ b/include/linux/spinlock_api_up.h
@@ -17,6 +17,7 @@
#define in_lock_functions(ADDR) 0
#define assert_raw_spin_locked(lock) do { (void)(lock); } while (0)
+#define warn_not_raw_spin_locked(lock) do { (void)(lock); } while (0)
/*
* In the UP-nondebug case there's no real locking going on, so the
--
2.1.0
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