btrfs: move super prototypes into super.h

Move these out of ctree.h into super.h to cut down on code in ctree.h.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/ctree.h

@@ -682,13 +682,6 @@ int btrfs_insert_orphan_item(struct btrfs_trans_handle *trans,
 int btrfs_del_orphan_item(struct btrfs_trans_handle *trans,
 			  struct btrfs_root *root, u64 offset);
 
-/* super.c */
-int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
-			unsigned long new_flags);
-int btrfs_sync_fs(struct super_block *sb, int wait);
-char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
-					  u64 subvol_objectid);
-
 /*
  * Get the correct offset inside the page of extent buffer.
  *

fs/btrfs/disk-io.c

@@ -51,6 +51,7 @@
 #include "uuid-tree.h"
 #include "relocation.h"
 #include "scrub.h"
+#include "super.h"
 
 #define BTRFS_SUPER_FLAG_SUPP	(BTRFS_HEADER_FLAG_WRITTEN |\
 				 BTRFS_HEADER_FLAG_RELOC |\

fs/btrfs/ioctl.c

@@ -60,6 +60,7 @@
 #include "ioctl.h"
 #include "file.h"
 #include "scrub.h"
+#include "super.h"
 
 #ifdef CONFIG_64BIT
 /* If we have a 32-bit userspace and 64-bit kernel, then the UAPI

fs/btrfs/super.c

@@ -57,6 +57,7 @@
 #include "ioctl.h"
 #include "scrub.h"
 #include "verity.h"
+#include "super.h"
 #define CREATE_TRACE_POINTS
 #include <trace/events/btrfs.h>
 

fs/btrfs/super.h

+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_SUPER_H
+#define BTRFS_SUPER_H
+
+int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
+			unsigned long new_flags);
+int btrfs_sync_fs(struct super_block *sb, int wait);
+char *btrfs_get_subvol_name_from_objectid(struct btrfs_fs_info *fs_info,
+					  u64 subvol_objectid);
+
+#endif