move Rust sources to top level, C sources into c_src

This moves the Rust sources out of rust_src/ and into the top level.
Running the bcachefs executable out of the development tree is now:

$ ./target/release/bcachefs command
or
$ cargo run --profile release -- command

instead of "./bcachefs command".

Building and installing is still:

$ make && make install

Signed-off-by: Thomas Bertschinger <tahbertschinger@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

1 files changed, 62 insertions, 0 deletions

diff --git a/c_src/include/linux/tracepoint.h b/c_src/include/linux/tracepoint.h
new file mode 100644
index 00000000..1686cb90
--- /dev/null
+++ b/c_src/include/linux/tracepoint.h
@@ -0,0 +1,62 @@
+#ifndef __TOOLS_LINUX_TRACEPOINT_H
+#define __TOOLS_LINUX_TRACEPOINT_H
+
+#define PARAMS(args...) args
+
+#define TP_PROTO(args...)	args
+#define TP_ARGS(args...)	args
+#define TP_CONDITION(args...)	args
+
+#define __DECLARE_TRACE(name, proto, args, cond, data_proto, data_args) \
+	static inline void trace_##name(proto)				\
+	{ }								\
+	static inline void trace_##name##_rcuidle(proto)		\
+	{ }								\
+	static inline int						\
+	register_trace_##name(void (*probe)(data_proto),		\
+			      void *data)				\
+	{								\
+		return -ENOSYS;						\
+	}								\
+	static inline int						\
+	unregister_trace_##name(void (*probe)(data_proto),		\
+				void *data)				\
+	{								\
+		return -ENOSYS;						\
+	}								\
+	static inline void check_trace_callback_type_##name(void (*cb)(data_proto)) \
+	{								\
+	}								\
+	static inline bool						\
+	trace_##name##_enabled(void)					\
+	{								\
+		return false;						\
+	}
+
+#define DEFINE_TRACE_FN(name, reg, unreg)
+#define DEFINE_TRACE(name)
+#define EXPORT_TRACEPOINT_SYMBOL_GPL(name)
+#define EXPORT_TRACEPOINT_SYMBOL(name)
+
+#define DECLARE_TRACE_NOARGS(name)					\
+	__DECLARE_TRACE(name, void, ,					\
+			cpu_online(raw_smp_processor_id()),		\
+			void *__data, __data)
+
+#define DECLARE_TRACE(name, proto, args)				\
+	__DECLARE_TRACE(name, PARAMS(proto), PARAMS(args),		\
+			cpu_online(raw_smp_processor_id()),		\
+			PARAMS(void *__data, proto),			\
+			PARAMS(__data, args))
+
+#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)
+#define DEFINE_EVENT(template, name, proto, args)		\
+	DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
+#define DEFINE_EVENT_FN(template, name, proto, args, reg, unreg)\
+	DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
+#define DEFINE_EVENT_PRINT(template, name, proto, args, print)	\
+	DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
+#define TRACE_EVENT(name, proto, args, struct, assign, print)	\
+	DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
+
+#endif /* __TOOLS_LINUX_TRACEPOINT_H */