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, 176 deletions

diff --git a/libbcachefs/fs-io-pagecache.h b/libbcachefs/fs-io-pagecache.h
deleted file mode 100644
index 27f712ae..00000000
--- a/libbcachefs/fs-io-pagecache.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_FS_IO_PAGECACHE_H
-#define _BCACHEFS_FS_IO_PAGECACHE_H
-
-#include <linux/pagemap.h>
-
-typedef DARRAY(struct folio *) folios;
-
-int bch2_filemap_get_contig_folios_d(struct address_space *, loff_t,
-				     u64, fgf_t, gfp_t, folios *);
-int bch2_write_invalidate_inode_pages_range(struct address_space *, loff_t, loff_t);
-
-/*
- * Use u64 for the end pos and sector helpers because if the folio covers the
- * max supported range of the mapping, the start offset of the next folio
- * overflows loff_t. This breaks much of the range based processing in the
- * buffered write path.
- */
-static inline u64 folio_end_pos(struct folio *folio)
-{
-	return folio_pos(folio) + folio_size(folio);
-}
-
-static inline size_t folio_sectors(struct folio *folio)
-{
-	return PAGE_SECTORS << folio_order(folio);
-}
-
-static inline loff_t folio_sector(struct folio *folio)
-{
-	return folio_pos(folio) >> 9;
-}
-
-static inline u64 folio_end_sector(struct folio *folio)
-{
-	return folio_end_pos(folio) >> 9;
-}
-
-#define BCH_FOLIO_SECTOR_STATE()	\
-	x(unallocated)			\
-	x(reserved)			\
-	x(dirty)			\
-	x(dirty_reserved)		\
-	x(allocated)
-
-enum bch_folio_sector_state {
-#define x(n)	SECTOR_##n,
-	BCH_FOLIO_SECTOR_STATE()
-#undef x
-};
-
-struct bch_folio_sector {
-	/* Uncompressed, fully allocated replicas (or on disk reservation): */
-	unsigned		nr_replicas:4;
-
-	/* Owns PAGE_SECTORS * replicas_reserved sized in memory reservation: */
-	unsigned		replicas_reserved:4;
-
-	/* i_sectors: */
-	enum bch_folio_sector_state state:8;
-};
-
-struct bch_folio {
-	spinlock_t		lock;
-	atomic_t		write_count;
-	/*
-	 * Is the sector state up to date with the btree?
-	 * (Not the data itself)
-	 */
-	bool			uptodate;
-	struct bch_folio_sector	s[];
-};
-
-/* Helper for when we need to add debug instrumentation: */
-static inline void bch2_folio_sector_set(struct folio *folio,
-			     struct bch_folio *s,
-			     unsigned i, unsigned n)
-{
-	s->s[i].state = n;
-}
-
-/* file offset (to folio offset) to bch_folio_sector index */
-static inline int folio_pos_to_s(struct folio *folio, loff_t pos)
-{
-	u64 f_offset = pos - folio_pos(folio);
-
-	BUG_ON(pos < folio_pos(folio) || pos >= folio_end_pos(folio));
-	return f_offset >> SECTOR_SHIFT;
-}
-
-/* for newly allocated folios: */
-static inline void __bch2_folio_release(struct folio *folio)
-{
-	kfree(folio_detach_private(folio));
-}
-
-static inline void bch2_folio_release(struct folio *folio)
-{
-	EBUG_ON(!folio_test_locked(folio));
-	__bch2_folio_release(folio);
-}
-
-static inline struct bch_folio *__bch2_folio(struct folio *folio)
-{
-	return folio_has_private(folio)
-		? (struct bch_folio *) folio_get_private(folio)
-		: NULL;
-}
-
-static inline struct bch_folio *bch2_folio(struct folio *folio)
-{
-	EBUG_ON(!folio_test_locked(folio));
-
-	return __bch2_folio(folio);
-}
-
-struct bch_folio *__bch2_folio_create(struct folio *, gfp_t);
-struct bch_folio *bch2_folio_create(struct folio *, gfp_t);
-
-struct bch2_folio_reservation {
-	struct disk_reservation	disk;
-	struct quota_res	quota;
-};
-
-static inline unsigned inode_nr_replicas(struct bch_fs *c, struct bch_inode_info *inode)
-{
-	/* XXX: this should not be open coded */
-	return inode->ei_inode.bi_data_replicas
-		? inode->ei_inode.bi_data_replicas - 1
-		: c->opts.data_replicas;
-}
-
-static inline void bch2_folio_reservation_init(struct bch_fs *c,
-			struct bch_inode_info *inode,
-			struct bch2_folio_reservation *res)
-{
-	memset(res, 0, sizeof(*res));
-
-	res->disk.nr_replicas = inode_nr_replicas(c, inode);
-}
-
-int bch2_folio_set(struct bch_fs *, subvol_inum, struct folio **, unsigned);
-void bch2_bio_page_state_set(struct bio *, struct bkey_s_c);
-
-void bch2_mark_pagecache_unallocated(struct bch_inode_info *, u64, u64);
-void bch2_mark_pagecache_reserved(struct bch_inode_info *, u64, u64);
-
-int bch2_get_folio_disk_reservation(struct bch_fs *,
-				struct bch_inode_info *,
-				struct folio *, bool);
-
-void bch2_folio_reservation_put(struct bch_fs *,
-			struct bch_inode_info *,
-			struct bch2_folio_reservation *);
-int bch2_folio_reservation_get(struct bch_fs *,
-			struct bch_inode_info *,
-			struct folio *,
-			struct bch2_folio_reservation *,
-			unsigned, unsigned);
-
-void bch2_set_folio_dirty(struct bch_fs *,
-			  struct bch_inode_info *,
-			  struct folio *,
-			  struct bch2_folio_reservation *,
-			  unsigned, unsigned);
-
-vm_fault_t bch2_page_fault(struct vm_fault *);
-vm_fault_t bch2_page_mkwrite(struct vm_fault *);
-void bch2_invalidate_folio(struct folio *, size_t, size_t);
-bool bch2_release_folio(struct folio *, gfp_t);
-
-loff_t bch2_seek_pagecache_data(struct inode *, loff_t, loff_t, unsigned, bool);
-loff_t bch2_seek_pagecache_hole(struct inode *, loff_t, loff_t, unsigned, bool);
-int bch2_clamp_data_hole(struct inode *, u64 *, u64 *, unsigned, bool);
-
-#endif /* _BCACHEFS_FS_IO_PAGECACHE_H */