diff --git a/convert/common.h b/convert/common.h
new file mode 100644
index 00000000..236e9a80
--- /dev/null
+++ b/convert/common.h
@@ -0,0 +1,55 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+/*
+ * Defines and function declarations for users of the mkfs API, no internal
+ * defintions.
+ */
+
+#ifndef __BTRFS_CONVERT_COMMON_H__
+#define __BTRFS_CONVERT_COMMON_H__
+
+#include "kerncompat.h"
+#include "common-defs.h"
+
+struct btrfs_mkfs_config;
+
+struct btrfs_convert_context {
+	u32 blocksize;
+	u32 first_data_block;
+	u32 block_count;
+	u32 inodes_count;
+	u32 free_inodes_count;
+	u64 total_bytes;
+	char *volume_name;
+	const struct btrfs_convert_operations *convert_ops;
+
+	/* The accurate used space of old filesystem */
+	struct cache_tree used;
+
+	/* Batched ranges which must be covered by data chunks */
+	struct cache_tree data_chunks;
+
+	/* Free space which is not covered by data_chunks */
+	struct cache_tree free;
+
+	void *fs_data;
+};
+
+int make_convert_btrfs(int fd, struct btrfs_mkfs_config *cfg,
+			      struct btrfs_convert_context *cctx);
+
+#endif
diff --git a/convert/main.c b/convert/main.c
index 3135ee31..48fb2f95 100644
--- a/convert/main.c
+++ b/convert/main.c
@@ -39,6 +39,7 @@
 #include "task-utils.h"
 #include "help.h"
 #include "mkfs/common.h"
+#include "convert/common.h"
 
 #if BTRFSCONVERT_EXT2
 #include <ext2fs/ext2_fs.h>
diff --git a/utils.c b/utils.c
index 990a9362..76e8bf05 100644
--- a/utils.c
+++ b/utils.c
@@ -51,6 +51,7 @@
 #include "ioctl.h"
 #include "commands.h"
 #include "mkfs/common.h"
+#include "convert/common.h"
 
 #ifndef BLKDISCARD
 #define BLKDISCARD	_IO(0x12,119)
diff --git a/utils.h b/utils.h
index 3cb006da..b72260c4 100644
--- a/utils.h
+++ b/utils.h
@@ -94,36 +94,10 @@ void btrfs_parse_features_to_string(char *buf, u64 flags);
 void print_kernel_version(FILE *stream, u32 version);
 u32 get_running_kernel_version(void);
 
-struct btrfs_mkfs_config;
-
-struct btrfs_convert_context {
-	u32 blocksize;
-	u32 first_data_block;
-	u32 block_count;
-	u32 inodes_count;
-	u32 free_inodes_count;
-	u64 total_bytes;
-	char *volume_name;
-	const struct btrfs_convert_operations *convert_ops;
-
-	/* The accurate used space of old filesystem */
-	struct cache_tree used;
-
-	/* Batched ranges which must be covered by data chunks */
-	struct cache_tree data_chunks;
-
-	/* Free space which is not covered by data_chunks */
-	struct cache_tree free;
-
-	void *fs_data;
-};
-
 #define	PREP_DEVICE_ZERO_END	(1U << 0)
 #define	PREP_DEVICE_DISCARD	(1U << 1)
 #define	PREP_DEVICE_VERBOSE	(1U << 2)
 
-int make_convert_btrfs(int fd, struct btrfs_mkfs_config *cfg,
-			      struct btrfs_convert_context *cctx);
 int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
 			struct btrfs_root *root, u64 objectid);
 int btrfs_prepare_device(int fd, const char *file, u64 *block_count_ret,