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, 43 deletions

diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
deleted file mode 100644
index 498e717a..00000000
--- a/include/linux/semaphore.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2008 Intel Corporation
- * Author: Matthew Wilcox <willy@linux.intel.com>
- *
- * Please see kernel/locking/semaphore.c for documentation of these functions
- */
-#ifndef __LINUX_SEMAPHORE_H
-#define __LINUX_SEMAPHORE_H
-
-#include <linux/list.h>
-#include <linux/spinlock.h>
-
-/* Please don't access any members of this structure directly */
-struct semaphore {
-	raw_spinlock_t		lock;
-	unsigned int		count;
-	struct list_head	wait_list;
-};
-
-#define __SEMAPHORE_INITIALIZER(name, n)				\
-{									\
-	.lock		= __RAW_SPIN_LOCK_UNLOCKED((name).lock),	\
-	.count		= n,						\
-	.wait_list	= LIST_HEAD_INIT((name).wait_list),		\
-}
-
-#define DEFINE_SEMAPHORE(name)	\
-	struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
-
-static inline void sema_init(struct semaphore *sem, int val)
-{
-	*sem = (struct semaphore) __SEMAPHORE_INITIALIZER(*sem, val);
-}
-
-extern void down(struct semaphore *sem);
-extern int __must_check down_interruptible(struct semaphore *sem);
-extern int __must_check down_killable(struct semaphore *sem);
-extern int __must_check down_trylock(struct semaphore *sem);
-extern int __must_check down_timeout(struct semaphore *sem, long);
-extern void up(struct semaphore *sem);
-
-#endif /* __LINUX_SEMAPHORE_H */