Move c_src dirs back to toplevel

We just wanted c sourcefiles out of the top level, not c source
directories.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

1 files changed, 31 insertions, 0 deletions

diff --git a/include/linux/srcu.h b/include/linux/srcu.h
new file mode 100644
index 00000000..75823cf2
--- /dev/null
+++ b/include/linux/srcu.h
@@ -0,0 +1,31 @@
+#ifndef __TOOLS_LINUX_SRCU_H
+#define __TOOLS_LINUX_SRCU_H
+
+struct srcu_struct {
+};
+
+static inline void srcu_read_unlock(struct srcu_struct *ssp, int idx) {}
+
+static inline int srcu_read_lock(struct srcu_struct *ssp)
+{
+	return 0;
+}
+
+static inline bool poll_state_synchronize_srcu(struct srcu_struct *ssp, unsigned long cookie)
+{
+	return false;
+}
+
+static inline unsigned long start_poll_synchronize_srcu(struct srcu_struct *ssp)
+{
+	return 0;
+}
+
+static inline void cleanup_srcu_struct(struct srcu_struct *ssp) {}
+
+static inline int init_srcu_struct(struct srcu_struct *ssp)
+{
+	return 0;
+}
+
+#endif /* __TOOLS_LINUX_SRCU_H */