X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=ctree.h;h=f14a7959a8e4d21ba5456583af5844b1346e7f30;hb=f802f572b1cb1d33bab9747e87e6506b284546cf;hp=499fea3b8239337211a698106552a3f9aa4c2bc7;hpb=db6feaadfe562f1da5372f95fb4eb9f8922ec1b9;p=platform%2Fupstream%2Fbtrfs-progs.git

diff --git a/ctree.h b/ctree.h
index 499fea3..f14a795 100644
--- a/ctree.h
+++ b/ctree.h
@@ -16,8 +16,8 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#ifndef __BTRFS__
-#define __BTRFS__
+#ifndef __BTRFS_CTREE_H__
+#define __BTRFS_CTREE_H__
 
 #if BTRFS_FLAT_INCLUDES
 #include "list.h"
@@ -40,6 +40,8 @@ struct btrfs_trans_handle;
 struct btrfs_free_space_ctl;
 #define BTRFS_MAGIC 0x4D5F53665248425FULL /* ascii _BHRfS_M, no null */
 
+#define BTRFS_MAX_MIRRORS 3
+
 #define BTRFS_MAX_LEVEL 8
 
 #define BTRFS_COMPAT_EXTENT_TREE_V0
@@ -147,7 +149,7 @@ struct btrfs_free_space_ctl;
 /* csum types */
 #define BTRFS_CSUM_TYPE_CRC32	0
 
-static int btrfs_csum_sizes[] = { 4, 0 };
+static int btrfs_csum_sizes[] = { 4 };
 
 /* four bytes for CRC32 */
 #define BTRFS_CRC32_SIZE 4
@@ -307,6 +309,8 @@ static inline unsigned long btrfs_chunk_item_size(int num_stripes)
 #define BTRFS_HEADER_FLAG_RELOC			(1ULL << 1)
 #define BTRFS_SUPER_FLAG_SEEDING		(1ULL << 32)
 #define BTRFS_SUPER_FLAG_METADUMP		(1ULL << 33)
+#define BTRFS_SUPER_FLAG_METADUMP_V2		(1ULL << 34)
+#define BTRFS_SUPER_FLAG_CHANGING_FSID		(1ULL << 35)
 
 #define BTRFS_BACKREF_REV_MAX		256
 #define BTRFS_BACKREF_REV_SHIFT		56
@@ -470,6 +474,7 @@ struct btrfs_super_block {
 #define BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF	(1ULL << 6)
 #define BTRFS_FEATURE_INCOMPAT_RAID56		(1ULL << 7)
 #define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA	(1ULL << 8)
+#define BTRFS_FEATURE_INCOMPAT_NO_HOLES		(1ULL << 9)
 
 
 #define BTRFS_FEATURE_COMPAT_SUPP		0ULL
@@ -482,7 +487,8 @@ struct btrfs_super_block {
 	 BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF |		\
 	 BTRFS_FEATURE_INCOMPAT_RAID56 |		\
 	 BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS |		\
-	 BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
+	 BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA |	\
+	 BTRFS_FEATURE_INCOMPAT_NO_HOLES)
 
 /*
  * A leaf is full of items. offset and size tell us where to find
@@ -544,9 +550,7 @@ struct btrfs_path {
 	 * and to force calls to keep space in the nodes
 	 */
 	unsigned int search_for_split:1;
-	unsigned int keep_locks:1;
-	unsigned int skip_locking:1;
-	unsigned int leave_spinning:1;
+	unsigned int skip_check_block:1;
 };
 
 /*
@@ -647,6 +651,16 @@ typedef enum {
 	BTRFS_ENCRYPTION_LAST = 1,
 } btrfs_encryption_type;
 
+enum btrfs_tree_block_status {
+	BTRFS_TREE_BLOCK_CLEAN,
+	BTRFS_TREE_BLOCK_INVALID_NRITEMS,
+	BTRFS_TREE_BLOCK_INVALID_PARENT_KEY,
+	BTRFS_TREE_BLOCK_BAD_KEY_ORDER,
+	BTRFS_TREE_BLOCK_INVALID_LEVEL,
+	BTRFS_TREE_BLOCK_INVALID_FREE_SPACE,
+	BTRFS_TREE_BLOCK_INVALID_OFFSETS,
+};
+
 struct btrfs_inode_item {
 	/* nfs style generation number */
 	__le64 generation;
@@ -830,18 +844,46 @@ struct btrfs_csum_item {
 #define BTRFS_BLOCK_GROUP_RAID1		(1ULL << 4)
 #define BTRFS_BLOCK_GROUP_DUP		(1ULL << 5)
 #define BTRFS_BLOCK_GROUP_RAID10	(1ULL << 6)
-#define BTRFS_BLOCK_GROUP_RAID5    (1ULL << 7)
-#define BTRFS_BLOCK_GROUP_RAID6    (1ULL << 8)
+#define BTRFS_BLOCK_GROUP_RAID5    	(1ULL << 7)
+#define BTRFS_BLOCK_GROUP_RAID6    	(1ULL << 8)
 #define BTRFS_BLOCK_GROUP_RESERVED	BTRFS_AVAIL_ALLOC_BIT_SINGLE
+#define BTRFS_NR_RAID_TYPES             7
+
+#define BTRFS_BLOCK_GROUP_TYPE_MASK	(BTRFS_BLOCK_GROUP_DATA |    \
+					 BTRFS_BLOCK_GROUP_SYSTEM |  \
+					 BTRFS_BLOCK_GROUP_METADATA)
+
+#define BTRFS_BLOCK_GROUP_PROFILE_MASK	(BTRFS_BLOCK_GROUP_RAID0 |   \
+					 BTRFS_BLOCK_GROUP_RAID1 |   \
+					 BTRFS_BLOCK_GROUP_RAID5 |   \
+					 BTRFS_BLOCK_GROUP_RAID6 |   \
+					 BTRFS_BLOCK_GROUP_DUP |     \
+					 BTRFS_BLOCK_GROUP_RAID10)
 
 /* used in struct btrfs_balance_args fields */
 #define BTRFS_AVAIL_ALLOC_BIT_SINGLE	(1ULL << 48)
 
-#define BTRFS_QGROUP_STATUS_OFF			0
-#define BTRFS_QGROUP_STATUS_ON			1
-#define BTRFS_QGROUP_STATUS_SCANNING		2
+/*
+ * GLOBAL_RSV does not exist as a on-disk block group type and is used
+ * internally for exporting info about global block reserve from space infos
+ */
+#define BTRFS_SPACE_INFO_GLOBAL_RSV    (1ULL << 49)
+
+#define BTRFS_QGROUP_LEVEL_SHIFT		48
+
+static inline u64 btrfs_qgroup_level(u64 qgroupid)
+{
+	return qgroupid >> BTRFS_QGROUP_LEVEL_SHIFT;
+}
+
+static inline u64 btrfs_qgroup_subvid(u64 qgroupid)
+{
+	return qgroupid & ((1ULL << BTRFS_QGROUP_LEVEL_SHIFT) - 1);
+}
 
-#define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT	(1 << 0)
+#define BTRFS_QGROUP_STATUS_FLAG_ON		(1ULL << 0)
+#define BTRFS_QGROUP_STATUS_FLAG_RESCAN		(1ULL << 1)
+#define BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT	(1ULL << 2)
 
 struct btrfs_qgroup_status_item {
 	__le64 version;
@@ -895,6 +937,7 @@ struct btrfs_block_group_cache {
 	struct btrfs_block_group_item item;
 	struct btrfs_space_info *space_info;
 	struct btrfs_free_space_ctl *free_space_ctl;
+	u64 bytes_super;
 	u64 pinned;
 	u64 flags;
 	int cached;
@@ -912,13 +955,16 @@ struct btrfs_device;
 struct btrfs_fs_devices;
 struct btrfs_fs_info {
 	u8 fsid[BTRFS_FSID_SIZE];
+	u8 *new_fsid;
 	u8 chunk_tree_uuid[BTRFS_UUID_SIZE];
+	u8 *new_chunk_tree_uuid;
 	struct btrfs_root *fs_root;
 	struct btrfs_root *extent_root;
 	struct btrfs_root *tree_root;
 	struct btrfs_root *chunk_root;
 	struct btrfs_root *dev_root;
 	struct btrfs_root *csum_root;
+	struct btrfs_root *quota_root;
 
 	struct rb_root fs_root_tree;
 
@@ -931,6 +977,7 @@ struct btrfs_fs_info {
 	struct extent_io_tree pinned_extents;
 	struct extent_io_tree pending_del;
 	struct extent_io_tree extent_ins;
+	struct extent_io_tree *excluded_extents;
 
 	/* logical->physical extent mapping */
 	struct btrfs_mapping_tree mapping_tree;
@@ -955,12 +1002,19 @@ struct btrfs_fs_info {
 
 	struct btrfs_extent_ops *extent_ops;
 	struct list_head dirty_cowonly_roots;
+	struct list_head recow_ebs;
 
 	struct btrfs_fs_devices *fs_devices;
 	struct list_head space_info;
 	int system_allocs;
-	int readonly;
-	int on_restoring;
+
+	unsigned int readonly:1;
+	unsigned int on_restoring:1;
+	unsigned int is_chunk_recover:1;
+	unsigned int quota_enabled:1;
+	unsigned int suppress_check_block_errors:1;
+	unsigned int ignore_fsid_mismatch:1;
+
 	int (*free_extent_hook)(struct btrfs_trans_handle *trans,
 				struct btrfs_root *root,
 				u64 bytenr, u64 num_bytes, u64 parent,
@@ -968,6 +1022,7 @@ struct btrfs_fs_info {
 				int refs_to_drop);
 	struct cache_tree *fsck_extent_cache;
 	struct cache_tree *corrupt_blocks;
+
 };
 
 /*
@@ -1003,6 +1058,16 @@ struct btrfs_root {
 	u64 highest_inode;
 	u64 last_inode_alloc;
 
+	/*
+	 * Record orphan data extent ref
+	 *
+	 * TODO: Don't restore things in btrfs_root.
+	 * Directly record it into inode_record, which needs a lot of
+	 * infrastructure change to allow cooperation between extent
+	 * and fs tree scan.
+	 */
+	struct list_head orphan_data_extents;
+
 	/* the dirty list is only used by non-reference counted roots */
 	struct list_head dirty_list;
 	struct rb_node rb_node;
@@ -1156,9 +1221,9 @@ struct btrfs_root {
 			   sizeof(((type *)0)->member)))
 
 #define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits)		\
-static inline u##bits btrfs_##name(struct extent_buffer *eb)		\
+static inline u##bits btrfs_##name(const struct extent_buffer *eb)	\
 {									\
-	struct btrfs_header *h = (struct btrfs_header *)eb->data;	\
+	const struct btrfs_header *h = (struct btrfs_header *)eb->data;	\
 	return le##bits##_to_cpu(h->member);				\
 }									\
 static inline void btrfs_set_##name(struct extent_buffer *eb,		\
@@ -1169,11 +1234,11 @@ static inline void btrfs_set_##name(struct extent_buffer *eb,		\
 }
 
 #define BTRFS_SETGET_FUNCS(name, type, member, bits)			\
-static inline u##bits btrfs_##name(struct extent_buffer *eb,		\
-				   type *s)				\
+static inline u##bits btrfs_##name(const struct extent_buffer *eb,	\
+				   const type *s)			\
 {									\
 	unsigned long offset = (unsigned long)s;			\
-	type *p = (type *) (eb->data + offset);				\
+	const type *p = (type *) (eb->data + offset);			\
 	return get_unaligned_le##bits(&p->member);			\
 }									\
 static inline void btrfs_set_##name(struct extent_buffer *eb,		\
@@ -1185,7 +1250,7 @@ static inline void btrfs_set_##name(struct extent_buffer *eb,		\
 }
 
 #define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits)		\
-static inline u##bits btrfs_##name(type *s)				\
+static inline u##bits btrfs_##name(const type *s)			\
 {									\
 	return le##bits##_to_cpu(s->member);				\
 }									\
@@ -1777,16 +1842,14 @@ static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb,
 	btrfs_set_header_flags(eb, flags);
 }
 
-static inline u8 *btrfs_header_fsid(void)
+static inline unsigned long btrfs_header_fsid(void)
 {
-	unsigned long ptr = offsetof(struct btrfs_header, fsid);
-	return (u8 *)ptr;
+	return offsetof(struct btrfs_header, fsid);
 }
 
-static inline u8 *btrfs_header_chunk_tree_uuid(struct extent_buffer *eb)
+static inline unsigned long btrfs_header_chunk_tree_uuid(struct extent_buffer *eb)
 {
-	unsigned long ptr = offsetof(struct btrfs_header, chunk_tree_uuid);
-	return (u8 *)ptr;
+	return offsetof(struct btrfs_header, chunk_tree_uuid);
 }
 
 static inline u8 *btrfs_super_fsid(struct extent_buffer *eb)
@@ -2022,6 +2085,15 @@ BTRFS_SETGET_FUNCS(qgroup_status_flags, struct btrfs_qgroup_status_item,
 BTRFS_SETGET_FUNCS(qgroup_status_scan, struct btrfs_qgroup_status_item,
 		   scan, 64);
 
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_status_version,
+			 struct btrfs_qgroup_status_item, version, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_status_generation,
+			 struct btrfs_qgroup_status_item, generation, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_status_flags,
+			 struct btrfs_qgroup_status_item, flags, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_status_scan,
+			 struct btrfs_qgroup_status_item, scan, 64);
+
 /* btrfs_qgroup_info_item */
 BTRFS_SETGET_FUNCS(qgroup_info_generation, struct btrfs_qgroup_info_item,
 		   generation, 64);
@@ -2057,14 +2129,16 @@ BTRFS_SETGET_FUNCS(qgroup_limit_rsv_referenced, struct btrfs_qgroup_limit_item,
 BTRFS_SETGET_FUNCS(qgroup_limit_rsv_exclusive, struct btrfs_qgroup_limit_item,
 		   rsv_exclusive, 64);
 
-/* this returns the number of file bytes represented by the inline item.
- * If an item is compressed, this is the uncompressed size
- */
-static inline u32 btrfs_file_extent_inline_len(struct extent_buffer *eb,
-					struct btrfs_file_extent_item *e)
-{
-       return btrfs_file_extent_ram_bytes(eb, e);
-}
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_flags,
+			 struct btrfs_qgroup_limit_item, flags, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_referenced,
+			 struct btrfs_qgroup_limit_item, max_referenced, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_max_exclusive,
+			 struct btrfs_qgroup_limit_item, max_exclusive, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_referenced,
+			 struct btrfs_qgroup_limit_item, rsv_referenced, 64);
+BTRFS_SETGET_STACK_FUNCS(stack_qgroup_limit_rsv_exclusive,
+			 struct btrfs_qgroup_limit_item, rsv_exclusive, 64);
 
 /*
  * this returns the number of bytes used by the item on disk, minus the
@@ -2079,6 +2153,28 @@ static inline u32 btrfs_file_extent_inline_item_len(struct extent_buffer *eb,
        return btrfs_item_size(eb, e) - offset;
 }
 
+/* this returns the number of file bytes represented by the inline item.
+ * If an item is compressed, this is the uncompressed size
+ */
+static inline u32 btrfs_file_extent_inline_len(struct extent_buffer *eb,
+					       int slot,
+					       struct btrfs_file_extent_item *fi)
+{
+	/*
+	 * return the space used on disk if this item isn't
+	 * compressed or encoded
+	 */
+	if (btrfs_file_extent_compression(eb, fi) == 0 &&
+	    btrfs_file_extent_encryption(eb, fi) == 0 &&
+	    btrfs_file_extent_other_encoding(eb, fi) == 0) {
+		return btrfs_file_extent_inline_item_len(eb,
+							 btrfs_item_nr(slot));
+	}
+
+	/* otherwise use the ram bytes field */
+	return btrfs_file_extent_ram_bytes(eb, fi);
+}
+
 static inline u32 btrfs_level_size(struct btrfs_root *root, int level) {
 	if (level == 0)
 		return root->leafsize;
@@ -2102,6 +2198,11 @@ static inline int btrfs_fs_incompat(struct btrfs_fs_info *fs_info, u64 flag)
 	btrfs_item_offset_nr(leaf, slot)))
 
 /* extent-tree.c */
+int btrfs_reserve_extent(struct btrfs_trans_handle *trans,
+			 struct btrfs_root *root,
+			 u64 num_bytes, u64 empty_size,
+			 u64 hint_byte, u64 search_end,
+			 struct btrfs_key *ins, int data);
 int btrfs_fix_block_accounting(struct btrfs_trans_handle *trans,
 				 struct btrfs_root *root);
 void btrfs_pin_extent(struct btrfs_fs_info *fs_info, u64 bytenr, u64 num_bytes);
@@ -2169,15 +2270,21 @@ int btrfs_make_block_groups(struct btrfs_trans_handle *trans,
 int btrfs_update_block_group(struct btrfs_trans_handle *trans,
 			     struct btrfs_root *root, u64 bytenr, u64 num,
 			     int alloc, int mark_free);
+int btrfs_record_file_extent(struct btrfs_trans_handle *trans,
+			      struct btrfs_root *root, u64 objectid,
+			      struct btrfs_inode_item *inode,
+			      u64 file_pos, u64 disk_bytenr,
+			      u64 num_bytes);
 /* ctree.c */
+int btrfs_comp_cpu_keys(struct btrfs_key *k1, struct btrfs_key *k2);
 int btrfs_del_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 		   struct btrfs_path *path, int level, int slot);
-int btrfs_check_node(struct btrfs_root *root,
-		      struct btrfs_disk_key *parent_key,
-		      struct extent_buffer *buf);
-int btrfs_check_leaf(struct btrfs_root *root,
-		      struct btrfs_disk_key *parent_key,
-		      struct extent_buffer *buf);
+enum btrfs_tree_block_status
+btrfs_check_node(struct btrfs_root *root, struct btrfs_disk_key *parent_key,
+		 struct extent_buffer *buf);
+enum btrfs_tree_block_status
+btrfs_check_leaf(struct btrfs_root *root, struct btrfs_disk_key *parent_key,
+		 struct extent_buffer *buf);
 void reada_for_search(struct btrfs_root *root, struct btrfs_path *path,
 			     int level, int slot, u64 objectid);
 struct extent_buffer *read_node_slot(struct btrfs_root *root,
@@ -2185,6 +2292,8 @@ struct extent_buffer *read_node_slot(struct btrfs_root *root,
 int btrfs_previous_item(struct btrfs_root *root,
 			struct btrfs_path *path, u64 min_objectid,
 			int type);
+int btrfs_previous_extent_item(struct btrfs_root *root,
+			struct btrfs_path *path, u64 min_objectid);
 int btrfs_cow_block(struct btrfs_trans_handle *trans,
 		    struct btrfs_root *root, struct extent_buffer *buf,
 		    struct extent_buffer *parent, int parent_slot,
@@ -2213,6 +2322,9 @@ int btrfs_split_item(struct btrfs_trans_handle *trans,
 int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
 		      *root, struct btrfs_key *key, struct btrfs_path *p, int
 		      ins_len, int cow);
+int btrfs_find_item(struct btrfs_root *fs_root, struct btrfs_path *found_path,
+		u64 iobjectid, u64 ioff, u8 key_type,
+		struct btrfs_key *found_key);
 void btrfs_release_path(struct btrfs_path *p);
 void add_root_to_dirty_list(struct btrfs_root *root);
 struct btrfs_path *btrfs_alloc_path(void);
@@ -2245,11 +2357,24 @@ static inline int btrfs_insert_empty_item(struct btrfs_trans_handle *trans,
 }
 
 int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path);
+static inline int btrfs_next_item(struct btrfs_root *root,
+				  struct btrfs_path *p)
+{
+	++p->slots[0];
+	if (p->slots[0] >= btrfs_header_nritems(p->nodes[0]))
+		return btrfs_next_leaf(root, p);
+	return 0;
+}
+
 int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path);
 int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf);
-int btrfs_set_item_key_safe(struct btrfs_trans_handle *trans,
-			    struct btrfs_root *root, struct btrfs_path *path,
+void btrfs_fixup_low_keys(struct btrfs_root *root, struct btrfs_path *path,
+			  struct btrfs_disk_key *key, int level);
+int btrfs_set_item_key_safe(struct btrfs_root *root, struct btrfs_path *path,
 			    struct btrfs_key *new_key);
+void btrfs_set_item_key_unsafe(struct btrfs_root *root,
+			       struct btrfs_path *path,
+			       struct btrfs_key *new_key);
 
 /* root-item.c */
 int btrfs_add_root_ref(struct btrfs_trans_handle *trans,
@@ -2274,6 +2399,15 @@ struct btrfs_dir_item *btrfs_lookup_dir_item(struct btrfs_trans_handle *trans,
 					     struct btrfs_path *path, u64 dir,
 					     const char *name, int name_len,
 					     int mod);
+struct btrfs_dir_item *btrfs_lookup_dir_index(struct btrfs_trans_handle *trans,
+					      struct btrfs_root *root,
+					      struct btrfs_path *path, u64 dir,
+					      const char *name, int name_len,
+					      u64 index, int mod);
+int btrfs_delete_one_dir_name(struct btrfs_trans_handle *trans,
+			      struct btrfs_root *root,
+			      struct btrfs_path *path,
+			      struct btrfs_dir_item *di);
 int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans,
 			    struct btrfs_root *root, const char *name,
 			    u16 name_len, const void *data, u16 data_len,
@@ -2294,6 +2428,26 @@ int btrfs_insert_inode(struct btrfs_trans_handle *trans, struct btrfs_root
 int btrfs_lookup_inode(struct btrfs_trans_handle *trans, struct btrfs_root
 		       *root, struct btrfs_path *path,
 		       struct btrfs_key *location, int mod);
+struct btrfs_inode_extref *btrfs_lookup_inode_extref(struct btrfs_trans_handle
+		*trans, struct btrfs_path *path, struct btrfs_root *root,
+		u64 ino, u64 parent_ino, u64 index, const char *name,
+		int namelen, int ins_len);
+int btrfs_del_inode_extref(struct btrfs_trans_handle *trans,
+			   struct btrfs_root *root,
+			   const char *name, int name_len,
+			   u64 inode_objectid, u64 ref_objectid,
+			   u64 *index);
+int btrfs_insert_inode_extref(struct btrfs_trans_handle *trans,
+			      struct btrfs_root *root,
+			      const char *name, int name_len,
+			      u64 inode_objectid, u64 ref_objectid, u64 index);
+struct btrfs_inode_ref *btrfs_lookup_inode_ref(struct btrfs_trans_handle *trans,
+		struct btrfs_root *root, struct btrfs_path *path,
+		const char *name, int namelen, u64 ino, u64 parent_ino,
+		u64 index, int ins_len);
+int btrfs_del_inode_ref(struct btrfs_trans_handle *trans,
+			struct btrfs_root *root, const char *name, int name_len,
+			u64 ino, u64 parent_ino, u64 *index);
 
 /* file-item.c */
 int btrfs_del_csums(struct btrfs_trans_handle *trans,
@@ -2317,4 +2471,38 @@ int btrfs_csum_truncate(struct btrfs_trans_handle *trans,
 int btrfs_lookup_uuid_subvol_item(int fd, const u8 *uuid, u64 *subvol_id);
 int btrfs_lookup_uuid_received_subvol_item(int fd, const u8 *uuid,
 					   u64 *subvol_id);
+
+static inline int is_fstree(u64 rootid)
+{
+	if (rootid == BTRFS_FS_TREE_OBJECTID ||
+	    (signed long long)rootid >= (signed long long)BTRFS_FIRST_FREE_OBJECTID)
+		return 1;
+	return 0;
+}
+
+/* inode.c */
+int check_dir_conflict(struct btrfs_root *root, char *name, int namelen,
+		u64 dir, u64 index);
+int btrfs_new_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+		u64 ino, u32 mode);
+int btrfs_add_link(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+		   u64 ino, u64 parent_ino, char *name, int namelen,
+		   u8 type, u64 *index, int add_backref);
+int btrfs_unlink(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+		 u64 ino, u64 parent_ino, u64 index, const char *name,
+		 int namelen, int add_orphan);
+int btrfs_add_orphan_item(struct btrfs_trans_handle *trans,
+			  struct btrfs_root *root, struct btrfs_path *path,
+			  u64 ino);
+int btrfs_mkdir(struct btrfs_trans_handle *trans, struct btrfs_root *root,
+		char *name, int namelen, u64 parent_ino, u64 *ino, int mode);
+
+/* file.c */
+int btrfs_get_extent(struct btrfs_trans_handle *trans,
+		     struct btrfs_root *root,
+		     struct btrfs_path *path,
+		     u64 ino, u64 offset, u64 len, int ins_len);
+int btrfs_punch_hole(struct btrfs_trans_handle *trans,
+		     struct btrfs_root *root,
+		     u64 ino, u64 offset, u64 len);
 #endif