btrfs: move super_block specific helpers into super.h

This will make syncing fs.h to user space a little easier if we can pull
the super block specific helpers out of fs.h and put them in super.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/compression.c

@@ -35,6 +35,7 @@
 #include "subpage.h"
 #include "zoned.h"
 #include "file-item.h"
+#include "super.h"
 
 static const char* const btrfs_compress_types[] = { "", "zlib", "lzo", "zstd" };
 

fs/btrfs/defrag.c

@@ -15,6 +15,7 @@
 #include "subpage.h"
 #include "defrag.h"
 #include "file-item.h"
+#include "super.h"
 
 static struct kmem_cache *btrfs_inode_defrag_cachep;
 

fs/btrfs/export.c

@@ -8,6 +8,7 @@
 #include "print-tree.h"
 #include "export.h"
 #include "accessors.h"
+#include "super.h"
 
 #define BTRFS_FID_SIZE_NON_CONNECTABLE (offsetof(struct btrfs_fid, \
 						 parent_objectid) / 4)

fs/btrfs/extent_io.c

@@ -35,6 +35,7 @@
 #include "file-item.h"
 #include "file.h"
 #include "dev-replace.h"
+#include "super.h"
 
 static struct kmem_cache *extent_buffer_cache;
 

fs/btrfs/file-item.c

@@ -20,6 +20,7 @@
 #include "fs.h"
 #include "accessors.h"
 #include "file-item.h"
+#include "super.h"
 
 #define __MAX_CSUM_ITEMS(r, size) ((unsigned long)(((BTRFS_LEAF_DATA_SIZE(r) - \
 				   sizeof(struct btrfs_item) * 2) / \

fs/btrfs/file.c

@@ -36,6 +36,7 @@
 #include "file-item.h"
 #include "ioctl.h"
 #include "file.h"
+#include "super.h"
 
 /* simple helper to fault in pages and copy.  This should go away
  * and be replaced with calls into generic code.

fs/btrfs/free-space-cache.c

@@ -29,6 +29,7 @@
 #include "accessors.h"
 #include "file-item.h"
 #include "file.h"
+#include "super.h"
 
 #define BITS_PER_BITMAP		(PAGE_SIZE * 8UL)
 #define MAX_CACHE_BYTES_PER_GIG	SZ_64K

fs/btrfs/fs.h

@@ -801,11 +801,6 @@ static inline u64 btrfs_get_last_root_drop_gen(const struct btrfs_fs_info *fs_in
 	return READ_ONCE(fs_info->last_root_drop_gen);
 }
 
-static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
-{
-	return sb->s_fs_info;
-}
-
 /*
  * Take the number of bytes to be checksummed and figure out how many leaves
  * it would require to store the csums for that many bytes.
@@ -947,18 +942,6 @@ static inline int btrfs_need_cleaner_sleep(struct btrfs_fs_info *fs_info)
 		btrfs_fs_closing(fs_info);
 }
 
-static inline void btrfs_set_sb_rdonly(struct super_block *sb)
-{
-	sb->s_flags |= SB_RDONLY;
-	set_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
-}
-
-static inline void btrfs_clear_sb_rdonly(struct super_block *sb)
-{
-	sb->s_flags &= ~SB_RDONLY;
-	clear_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
-}
-
 static inline void btrfs_wake_unfinished_drop(struct btrfs_fs_info *fs_info)
 {
 	clear_and_wake_up_bit(BTRFS_FS_UNFINISHED_DROPS, &fs_info->flags);

fs/btrfs/inode.c

@@ -68,6 +68,7 @@
 #include "acl.h"
 #include "relocation.h"
 #include "verity.h"
+#include "super.h"
 
 struct btrfs_iget_args {
 	u64 ino;

fs/btrfs/lzo.c

@@ -16,6 +16,7 @@
 #include "messages.h"
 #include "compression.h"
 #include "ctree.h"
+#include "super.h"
 
 #define LZO_LEN	4
 

fs/btrfs/messages.c

@@ -5,6 +5,7 @@
 #include "discard.h"
 #include "transaction.h"
 #include "space-info.h"
+#include "super.h"
 
 #ifdef CONFIG_PRINTK
 

fs/btrfs/ordered-data.c

@@ -19,6 +19,7 @@
 #include "qgroup.h"
 #include "subpage.h"
 #include "file.h"
+#include "super.h"
 
 static struct kmem_cache *btrfs_ordered_extent_cache;
 

fs/btrfs/props.c

@@ -14,6 +14,7 @@
 #include "space-info.h"
 #include "fs.h"
 #include "accessors.h"
+#include "super.h"
 
 #define BTRFS_PROP_HANDLERS_HT_BITS 8
 static DEFINE_HASHTABLE(prop_handlers_ht, BTRFS_PROP_HANDLERS_HT_BITS);

fs/btrfs/reflink.c

@@ -14,6 +14,7 @@
 #include "accessors.h"
 #include "file-item.h"
 #include "file.h"
+#include "super.h"
 
 #define BTRFS_MAX_DEDUPE_LEN	SZ_16M
 

fs/btrfs/relocation.c

@@ -34,6 +34,7 @@
 #include "root-tree.h"
 #include "file-item.h"
 #include "relocation.h"
+#include "super.h"
 
 /*
  * Relocation overview

fs/btrfs/super.h

@@ -9,4 +9,21 @@ 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);
 
+static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
+{
+	return sb->s_fs_info;
+}
+
+static inline void btrfs_set_sb_rdonly(struct super_block *sb)
+{
+	sb->s_flags |= SB_RDONLY;
+	set_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
+}
+
+static inline void btrfs_clear_sb_rdonly(struct super_block *sb)
+{
+	sb->s_flags &= ~SB_RDONLY;
+	clear_bit(BTRFS_FS_STATE_RO, &btrfs_sb(sb)->fs_state);
+}
+
 #endif

fs/btrfs/volumes.c

@@ -39,6 +39,7 @@
 #include "ioctl.h"
 #include "relocation.h"
 #include "scrub.h"
+#include "super.h"
 
 static struct bio_set btrfs_bioset;