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, 85 deletions

diff --git a/include/linux/math64.h b/include/linux/math64.h
deleted file mode 100644
index 5eb6f064..00000000
--- a/include/linux/math64.h
+++ /dev/null
@@ -1,85 +0,0 @@
-#ifndef _LINUX_MATH64_H
-#define _LINUX_MATH64_H
-
-#include <linux/types.h>
-
-#define do_div(n,base) ({					\
-	u32 __base = (base);					\
-	u32 __rem;						\
-	__rem = ((u64)(n)) % __base;				\
-	(n) = ((u64)(n)) / __base;				\
-	__rem;							\
- })
-
-#define div64_long(x, y) div64_s64((x), (y))
-#define div64_ul(x, y)   div64_u64((x), (y))
-
-/**
- * div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder
- *
- * This is commonly provided by 32bit archs to provide an optimized 64bit
- * divide.
- */
-static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
-{
-	*remainder = dividend % divisor;
-	return dividend / divisor;
-}
-
-/**
- * div_s64_rem - signed 64bit divide with 32bit divisor with remainder
- */
-static inline s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
-{
-	*remainder = dividend % divisor;
-	return dividend / divisor;
-}
-
-/**
- * div64_u64_rem - unsigned 64bit divide with 64bit divisor and remainder
- */
-static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
-{
-	*remainder = dividend % divisor;
-	return dividend / divisor;
-}
-
-/**
- * div64_u64 - unsigned 64bit divide with 64bit divisor
- */
-static inline u64 div64_u64(u64 dividend, u64 divisor)
-{
-	return dividend / divisor;
-}
-
-/**
- * div64_s64 - signed 64bit divide with 64bit divisor
- */
-static inline s64 div64_s64(s64 dividend, s64 divisor)
-{
-	return dividend / divisor;
-}
-
-/**
- * div_u64 - unsigned 64bit divide with 32bit divisor
- *
- * This is the most common 64bit divide and should be used if possible,
- * as many 32bit archs can optimize this variant better than a full 64bit
- * divide.
- */
-static inline u64 div_u64(u64 dividend, u32 divisor)
-{
-	u32 remainder;
-	return div_u64_rem(dividend, divisor, &remainder);
-}
-
-/**
- * div_s64 - signed 64bit divide with 32bit divisor
- */
-static inline s64 div_s64(s64 dividend, s32 divisor)
-{
-	s32 remainder;
-	return div_s64_rem(dividend, divisor, &remainder);
-}
-
-#endif /* _LINUX_MATH64_H */