1 files changed, 81 insertions, 0 deletions
diff --git a/fs/bcachefs/reflink.h b/fs/bcachefs/reflink.h
new file mode 100644
index 0000000000..8ccf3f9c49
--- /dev/null
+++ b/fs/bcachefs/reflink.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_REFLINK_H
+#define _BCACHEFS_REFLINK_H
+
+enum bkey_invalid_flags;
+
+int bch2_reflink_p_invalid(struct bch_fs *, struct bkey_s_c,
+			   enum bkey_invalid_flags, struct printbuf *);
+void bch2_reflink_p_to_text(struct printbuf *, struct bch_fs *,
+			    struct bkey_s_c);
+bool bch2_reflink_p_merge(struct bch_fs *, struct bkey_s, struct bkey_s_c);
+
+#define bch2_bkey_ops_reflink_p ((struct bkey_ops) {		\
+	.key_invalid	= bch2_reflink_p_invalid,		\
+	.val_to_text	= bch2_reflink_p_to_text,		\
+	.key_merge	= bch2_reflink_p_merge,			\
+	.trans_trigger	= bch2_trans_mark_reflink_p,		\
+	.atomic_trigger	= bch2_mark_reflink_p,			\
+	.min_val_size	= 16,					\
+})
+
+int bch2_reflink_v_invalid(struct bch_fs *, struct bkey_s_c,
+			   enum bkey_invalid_flags, struct printbuf *);
+void bch2_reflink_v_to_text(struct printbuf *, struct bch_fs *,
+			    struct bkey_s_c);
+int bch2_trans_mark_reflink_v(struct btree_trans *, enum btree_id, unsigned,
+			      struct bkey_s_c, struct bkey_i *, unsigned);
+
+#define bch2_bkey_ops_reflink_v ((struct bkey_ops) {		\
+	.key_invalid	= bch2_reflink_v_invalid,		\
+	.val_to_text	= bch2_reflink_v_to_text,		\
+	.swab		= bch2_ptr_swab,			\
+	.trans_trigger	= bch2_trans_mark_reflink_v,		\
+	.atomic_trigger	= bch2_mark_extent,			\
+	.min_val_size	= 8,					\
+})
+
+int bch2_indirect_inline_data_invalid(struct bch_fs *, struct bkey_s_c,
+				      enum bkey_invalid_flags, struct printbuf *);
+void bch2_indirect_inline_data_to_text(struct printbuf *,
+				struct bch_fs *, struct bkey_s_c);
+int bch2_trans_mark_indirect_inline_data(struct btree_trans *,
+					 enum btree_id, unsigned,
+			      struct bkey_s_c, struct bkey_i *,
+			      unsigned);
+
+#define bch2_bkey_ops_indirect_inline_data ((struct bkey_ops) {	\
+	.key_invalid	= bch2_indirect_inline_data_invalid,	\
+	.val_to_text	= bch2_indirect_inline_data_to_text,	\
+	.trans_trigger	= bch2_trans_mark_indirect_inline_data,	\
+	.min_val_size	= 8,					\
+})
+
+static inline const __le64 *bkey_refcount_c(struct bkey_s_c k)
+{
+	switch (k.k->type) {
+	case KEY_TYPE_reflink_v:
+		return &bkey_s_c_to_reflink_v(k).v->refcount;
+	case KEY_TYPE_indirect_inline_data:
+		return &bkey_s_c_to_indirect_inline_data(k).v->refcount;
+	default:
+		return NULL;
+	}
+}
+
+static inline __le64 *bkey_refcount(struct bkey_i *k)
+{
+	switch (k->k.type) {
+	case KEY_TYPE_reflink_v:
+		return &bkey_i_to_reflink_v(k)->v.refcount;
+	case KEY_TYPE_indirect_inline_data:
+		return &bkey_i_to_indirect_inline_data(k)->v.refcount;
+	default:
+		return NULL;
+	}
+}
+
+s64 bch2_remap_range(struct bch_fs *, subvol_inum, u64,
+		     subvol_inum, u64, u64, u64, s64 *);
+
+#endif /* _BCACHEFS_REFLINK_H */