initial Olimex linux tree from Daniel, originally Feb 3, 2016

1 files changed, 20 insertions, 0 deletions

diff --git a/linux/kernel/locking/rwsem.h b/linux/kernel/locking/rwsem.h
new file mode 100644
index 00000000..870ed9a5
--- /dev/null
+++ b/linux/kernel/locking/rwsem.h
@@ -0,0 +1,20 @@
+#ifdef CONFIG_RWSEM_SPIN_ON_OWNER
+static inline void rwsem_set_owner(struct rw_semaphore *sem)
+{
+	sem->owner = current;
+}
+
+static inline void rwsem_clear_owner(struct rw_semaphore *sem)
+{
+	sem->owner = NULL;
+}
+
+#else
+static inline void rwsem_set_owner(struct rw_semaphore *sem)
+{
+}
+
+static inline void rwsem_clear_owner(struct rw_semaphore *sem)
+{
+}
+#endif