1 files changed, 0 insertions, 88 deletions
diff --git a/fs/bcachefs/btree_gc.h b/fs/bcachefs/btree_gc.h
deleted file mode 100644
index ec77662369a2..000000000000
--- a/fs/bcachefs/btree_gc.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_BTREE_GC_H
-#define _BCACHEFS_BTREE_GC_H
-
-#include "bkey.h"
-#include "btree_gc_types.h"
-#include "btree_types.h"
-
-int bch2_check_topology(struct bch_fs *);
-int bch2_check_allocations(struct bch_fs *);
-
-/*
- * For concurrent mark and sweep (with other index updates), we define a total
- * ordering of _all_ references GC walks:
- *
- * Note that some references will have the same GC position as others - e.g.
- * everything within the same btree node; in those cases we're relying on
- * whatever locking exists for where those references live, i.e. the write lock
- * on a btree node.
- *
- * That locking is also required to ensure GC doesn't pass the updater in
- * between the updater adding/removing the reference and updating the GC marks;
- * without that, we would at best double count sometimes.
- *
- * That part is important - whenever calling bch2_mark_pointers(), a lock _must_
- * be held that prevents GC from passing the position the updater is at.
- *
- * (What about the start of gc, when we're clearing all the marks? GC clears the
- * mark with the gc pos seqlock held, and bch_mark_bucket checks against the gc
- * position inside its cmpxchg loop, so crap magically works).
- */
-
-/* Position of (the start of) a gc phase: */
-static inline struct gc_pos gc_phase(enum gc_phase phase)
-{
-	return (struct gc_pos) { .phase	= phase, };
-}
-
-static inline struct gc_pos gc_pos_btree(enum btree_id btree, unsigned level,
-					 struct bpos pos)
-{
-	return (struct gc_pos) {
-		.phase	= GC_PHASE_btree,
-		.btree	= btree,
-		.level	= level,
-		.pos	= pos,
-	};
-}
-
-static inline int gc_btree_order(enum btree_id btree)
-{
-	if (btree == BTREE_ID_alloc)
-		return -2;
-	if (btree == BTREE_ID_stripes)
-		return -1;
-	return btree;
-}
-
-static inline int gc_pos_cmp(struct gc_pos l, struct gc_pos r)
-{
-	return  cmp_int(l.phase, r.phase) ?:
-		cmp_int(gc_btree_order(l.btree),
-			gc_btree_order(r.btree)) ?:
-		cmp_int(l.level, r.level) ?:
-		bpos_cmp(l.pos, r.pos);
-}
-
-static inline bool gc_visited(struct bch_fs *c, struct gc_pos pos)
-{
-	unsigned seq;
-	bool ret;
-
-	do {
-		seq = read_seqcount_begin(&c->gc_pos_lock);
-		ret = gc_pos_cmp(pos, c->gc_pos) <= 0;
-	} while (read_seqcount_retry(&c->gc_pos_lock, seq));
-
-	return ret;
-}
-
-void bch2_gc_pos_to_text(struct printbuf *, struct gc_pos *);
-
-int bch2_gc_gens(struct bch_fs *);
-void bch2_gc_gens_async(struct bch_fs *);
-
-void bch2_fs_btree_gc_init_early(struct bch_fs *);
-
-#endif /* _BCACHEFS_BTREE_GC_H */