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-rw-r--r--rust/helpers/spinlock.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/rust/helpers/spinlock.c b/rust/helpers/spinlock.c
new file mode 100644
index 000000000000..42c4bf01a23e
--- /dev/null
+++ b/rust/helpers/spinlock.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/spinlock.h>
+
+void rust_helper___spin_lock_init(spinlock_t *lock, const char *name,
+ struct lock_class_key *key)
+{
+#ifdef CONFIG_DEBUG_SPINLOCK
+# if defined(CONFIG_PREEMPT_RT)
+ __spin_lock_init(lock, name, key, false);
+# else /*!CONFIG_PREEMPT_RT */
+ __raw_spin_lock_init(spinlock_check(lock), name, key, LD_WAIT_CONFIG);
+# endif /* CONFIG_PREEMPT_RT */
+#else /* !CONFIG_DEBUG_SPINLOCK */
+ spin_lock_init(lock);
+#endif /* CONFIG_DEBUG_SPINLOCK */
+}
+
+void rust_helper_spin_lock(spinlock_t *lock)
+{
+ spin_lock(lock);
+}
+
+void rust_helper_spin_unlock(spinlock_t *lock)
+{
+ spin_unlock(lock);
+}
+
+int rust_helper_spin_trylock(spinlock_t *lock)
+{
+ return spin_trylock(lock);
+}
+
+void rust_helper_spin_assert_is_held(spinlock_t *lock)
+{
+ lockdep_assert_held(lock);
+}