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, 0 insertions, 29 deletions

diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
deleted file mode 100644
index f851d6a2..00000000
--- a/include/linux/rwsem.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#ifndef __TOOLS_LINUX_RWSEM_H
-#define __TOOLS_LINUX_RWSEM_H
-
-#include <pthread.h>
-
-struct rw_semaphore {
-	pthread_rwlock_t	lock;
-};
-
-#define __RWSEM_INITIALIZER(name)				\
-	{ .lock = PTHREAD_RWLOCK_INITIALIZER }
-
-#define DECLARE_RWSEM(name) \
-	struct rw_semaphore name = __RWSEM_INITIALIZER(name)
-
-static inline void init_rwsem(struct rw_semaphore *lock)
-{
-	pthread_rwlock_init(&lock->lock, NULL);
-}
-
-#define down_read(l)		pthread_rwlock_rdlock(&(l)->lock)
-#define down_read_killable(l)	(pthread_rwlock_rdlock(&(l)->lock), 0)
-#define down_read_trylock(l)	(!pthread_rwlock_tryrdlock(&(l)->lock))
-#define up_read(l)		pthread_rwlock_unlock(&(l)->lock)
-
-#define down_write(l)		pthread_rwlock_wrlock(&(l)->lock)
-#define up_write(l)		pthread_rwlock_unlock(&(l)->lock)
-
-#endif /* __TOOLS_LINUX_RWSEM_H */