text: #undef TRACE_SYSTEM
  #define TRACE_SYSTEM btrfs
  
  #if !defined(_TRACE_BTRFS_H) || defined(TRACE_HEADER_MULTI_READ)
  #define _TRACE_BTRFS_H
  
  #include <linux/writeback.h>
  #include <linux/tracepoint.h>
  #include <trace/events/gfpflags.h>
  
  struct btrfs_root;
  struct btrfs_fs_info;
  struct btrfs_inode;
  struct extent_map;
  struct btrfs_ordered_extent;
  struct btrfs_delayed_ref_node;
  struct btrfs_delayed_tree_ref;
  struct btrfs_delayed_data_ref;
  struct btrfs_delayed_ref_head;
  struct btrfs_block_group_cache;
  struct btrfs_free_cluster;
  struct map_lookup;
  struct extent_buffer;
  struct btrfs_work;
  struct __btrfs_workqueue;
  struct btrfs_qgroup_operation;
  
  #define show_ref_type(type)						\
  	__print_symbolic(type,						\
  		{ BTRFS_TREE_BLOCK_REF_KEY, 	"TREE_BLOCK_REF" },	\
  		{ BTRFS_EXTENT_DATA_REF_KEY, 	"EXTENT_DATA_REF" },	\
  		{ BTRFS_EXTENT_REF_V0_KEY, 	"EXTENT_REF_V0" },	\
  		{ BTRFS_SHARED_BLOCK_REF_KEY, 	"SHARED_BLOCK_REF" },	\
  		{ BTRFS_SHARED_DATA_REF_KEY, 	"SHARED_DATA_REF" })
  
  #define __show_root_type(obj)						\
  	__print_symbolic_u64(obj,					\
  		{ BTRFS_ROOT_TREE_OBJECTID, 	"ROOT_TREE"	},	\
  		{ BTRFS_EXTENT_TREE_OBJECTID, 	"EXTENT_TREE"	},	\
  		{ BTRFS_CHUNK_TREE_OBJECTID, 	"CHUNK_TREE"	},	\
  		{ BTRFS_DEV_TREE_OBJECTID, 	"DEV_TREE"	},	\
  		{ BTRFS_FS_TREE_OBJECTID, 	"FS_TREE"	},	\
  		{ BTRFS_ROOT_TREE_DIR_OBJECTID, "ROOT_TREE_DIR"	},	\
  		{ BTRFS_CSUM_TREE_OBJECTID, 	"CSUM_TREE"	},	\
  		{ BTRFS_TREE_LOG_OBJECTID,	"TREE_LOG"	},	\
  		{ BTRFS_QUOTA_TREE_OBJECTID,	"QUOTA_TREE"	},	\
  		{ BTRFS_TREE_RELOC_OBJECTID,	"TREE_RELOC"	},	\
  		{ BTRFS_UUID_TREE_OBJECTID,	"UUID_RELOC"	},	\
  		{ BTRFS_DATA_RELOC_TREE_OBJECTID, "DATA_RELOC_TREE" })
  
  #define show_root_type(obj)						\
  	obj, ((obj >= BTRFS_DATA_RELOC_TREE_OBJECTID) ||		\
  	      (obj >= BTRFS_ROOT_TREE_OBJECTID &&			\
  	       obj <= BTRFS_QUOTA_TREE_OBJECTID)) ? __show_root_type(obj) : "-"
  
  #define BTRFS_GROUP_FLAGS	\
  	{ BTRFS_BLOCK_GROUP_DATA,	"DATA"},	\
  	{ BTRFS_BLOCK_GROUP_SYSTEM,	"SYSTEM"},	\
  	{ BTRFS_BLOCK_GROUP_METADATA,	"METADATA"},	\
  	{ BTRFS_BLOCK_GROUP_RAID0,	"RAID0"}, 	\
  	{ BTRFS_BLOCK_GROUP_RAID1,	"RAID1"}, 	\
  	{ BTRFS_BLOCK_GROUP_DUP,	"DUP"}, 	\
  	{ BTRFS_BLOCK_GROUP_RAID10,	"RAID10"}, 	\
  	{ BTRFS_BLOCK_GROUP_RAID5,	"RAID5"},	\
  	{ BTRFS_BLOCK_GROUP_RAID6,	"RAID6"}
  
  #define BTRFS_UUID_SIZE 16
  
  TRACE_EVENT(btrfs_transaction_commit,
  
  	TP_PROTO(struct btrfs_root *root),
  
  	TP_ARGS(root),
  
  	TP_STRUCT__entry(
  		__field(	u64,  generation		)
  		__field(	u64,  root_objectid		)
  	),
  
  	TP_fast_assign(
  		__entry->generation	= root->fs_info->generation;
  		__entry->root_objectid	= root->root_key.objectid;
  	),
  
  	TP_printk("root = %llu(%s), gen = %llu",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long long)__entry->generation)
  );
  
  DECLARE_EVENT_CLASS(btrfs__inode,
  
  	TP_PROTO(struct inode *inode),
  
  	TP_ARGS(inode),
  
  	TP_STRUCT__entry(
  		__field(	ino_t,  ino			)
  		__field(	blkcnt_t,  blocks		)
  		__field(	u64,  disk_i_size		)
  		__field(	u64,  generation		)
  		__field(	u64,  last_trans		)
  		__field(	u64,  logged_trans		)
  		__field(	u64,  root_objectid		)
  	),
  
  	TP_fast_assign(
  		__entry->ino	= inode->i_ino;
  		__entry->blocks	= inode->i_blocks;
  		__entry->disk_i_size  = BTRFS_I(inode)->disk_i_size;
  		__entry->generation = BTRFS_I(inode)->generation;
  		__entry->last_trans = BTRFS_I(inode)->last_trans;
  		__entry->logged_trans = BTRFS_I(inode)->logged_trans;
  		__entry->root_objectid =
  				BTRFS_I(inode)->root->root_key.objectid;
  	),
  
  	TP_printk("root = %llu(%s), gen = %llu, ino = %lu, blocks = %llu, "
  		  "disk_i_size = %llu, last_trans = %llu, logged_trans = %llu",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long long)__entry->generation,
  		  (unsigned long)__entry->ino,
  		  (unsigned long long)__entry->blocks,
  		  (unsigned long long)__entry->disk_i_size,
  		  (unsigned long long)__entry->last_trans,
  		  (unsigned long long)__entry->logged_trans)
  );
  
  DEFINE_EVENT(btrfs__inode, btrfs_inode_new,
  
  	TP_PROTO(struct inode *inode),
  
  	TP_ARGS(inode)
  );
  
  DEFINE_EVENT(btrfs__inode, btrfs_inode_request,
  
  	TP_PROTO(struct inode *inode),
  
  	TP_ARGS(inode)
  );
  
  DEFINE_EVENT(btrfs__inode, btrfs_inode_evict,
  
  	TP_PROTO(struct inode *inode),
  
  	TP_ARGS(inode)
  );
  
  #define __show_map_type(type)						\
  	__print_symbolic_u64(type,					\
  		{ EXTENT_MAP_LAST_BYTE, "LAST_BYTE" 	},		\
  		{ EXTENT_MAP_HOLE, 	"HOLE" 		},		\
  		{ EXTENT_MAP_INLINE, 	"INLINE" 	},		\
  		{ EXTENT_MAP_DELALLOC,	"DELALLOC" 	})
  
  #define show_map_type(type)			\
  	type, (type >= EXTENT_MAP_LAST_BYTE) ? "-" :  __show_map_type(type)
  
  #define show_map_flags(flag)						\
  	__print_flags(flag, "|",					\
  		{ EXTENT_FLAG_PINNED, 		"PINNED" 	},	\
  		{ EXTENT_FLAG_COMPRESSED, 	"COMPRESSED" 	},	\
  		{ EXTENT_FLAG_VACANCY, 		"VACANCY" 	},	\
  		{ EXTENT_FLAG_PREALLOC, 	"PREALLOC" 	},	\
  		{ EXTENT_FLAG_LOGGING,	 	"LOGGING" 	},	\
  		{ EXTENT_FLAG_FILLING,	 	"FILLING" 	})
  
  TRACE_EVENT_CONDITION(btrfs_get_extent,
  
  	TP_PROTO(struct btrfs_root *root, struct extent_map *map),
  
  	TP_ARGS(root, map),
  
  	TP_CONDITION(map),
  
  	TP_STRUCT__entry(
  		__field(	u64,  root_objectid	)
  		__field(	u64,  start		)
  		__field(	u64,  len		)
  		__field(	u64,  orig_start	)
  		__field(	u64,  block_start	)
  		__field(	u64,  block_len		)
  		__field(	unsigned long,  flags	)
  		__field(	int,  refs		)
  		__field(	unsigned int,  compress_type	)
  	),
  
  	TP_fast_assign(
  		__entry->root_objectid	= root->root_key.objectid;
  		__entry->start 		= map->start;
  		__entry->len		= map->len;
  		__entry->orig_start	= map->orig_start;
  		__entry->block_start	= map->block_start;
  		__entry->block_len	= map->block_len;
  		__entry->flags		= map->flags;
  		__entry->refs		= atomic_read(&map->refs);
  		__entry->compress_type	= map->compress_type;
  	),
  
  	TP_printk("root = %llu(%s), start = %llu, len = %llu, "
  		  "orig_start = %llu, block_start = %llu(%s), "
  		  "block_len = %llu, flags = %s, refs = %u, "
  		  "compress_type = %u",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long long)__entry->start,
  		  (unsigned long long)__entry->len,
  		  (unsigned long long)__entry->orig_start,
  		  show_map_type(__entry->block_start),
  		  (unsigned long long)__entry->block_len,
  		  show_map_flags(__entry->flags),
  		  __entry->refs, __entry->compress_type)
  );
  
  #define show_ordered_flags(flags)					\
  	__print_symbolic(flags,						\
  		{ BTRFS_ORDERED_IO_DONE, 	"IO_DONE" 	},	\
  		{ BTRFS_ORDERED_COMPLETE, 	"COMPLETE" 	},	\
  		{ BTRFS_ORDERED_NOCOW, 		"NOCOW" 	},	\
  		{ BTRFS_ORDERED_COMPRESSED, 	"COMPRESSED" 	},	\
  		{ BTRFS_ORDERED_PREALLOC, 	"PREALLOC" 	},	\
  		{ BTRFS_ORDERED_DIRECT, 	"DIRECT" 	},	\
  		{ BTRFS_ORDERED_IOERR, 		"IOERR" 	},	\
  		{ BTRFS_ORDERED_UPDATED_ISIZE, 	"UPDATED_ISIZE"	},	\
  		{ BTRFS_ORDERED_LOGGED_CSUM, 	"LOGGED_CSUM"	})
  
  
  DECLARE_EVENT_CLASS(btrfs__ordered_extent,
  
  	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
  
  	TP_ARGS(inode, ordered),
  
  	TP_STRUCT__entry(
  		__field(	ino_t,  ino		)
  		__field(	u64,  file_offset	)
  		__field(	u64,  start		)
  		__field(	u64,  len		)
  		__field(	u64,  disk_len		)
  		__field(	u64,  bytes_left	)
  		__field(	unsigned long,  flags	)
  		__field(	int,  compress_type	)
  		__field(	int,  refs		)
  		__field(	u64,  root_objectid	)
  	),
  
  	TP_fast_assign(
  		__entry->ino 		= inode->i_ino;
  		__entry->file_offset	= ordered->file_offset;
  		__entry->start		= ordered->start;
  		__entry->len		= ordered->len;
  		__entry->disk_len	= ordered->disk_len;
  		__entry->bytes_left	= ordered->bytes_left;
  		__entry->flags		= ordered->flags;
  		__entry->compress_type	= ordered->compress_type;
  		__entry->refs		= atomic_read(&ordered->refs);
  		__entry->root_objectid	=
  				BTRFS_I(inode)->root->root_key.objectid;
  	),
  
  	TP_printk("root = %llu(%s), ino = %llu, file_offset = %llu, "
  		  "start = %llu, len = %llu, disk_len = %llu, "
  		  "bytes_left = %llu, flags = %s, compress_type = %d, "
  		  "refs = %d",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long long)__entry->ino,
  		  (unsigned long long)__entry->file_offset,
  		  (unsigned long long)__entry->start,
  		  (unsigned long long)__entry->len,
  		  (unsigned long long)__entry->disk_len,
  		  (unsigned long long)__entry->bytes_left,
  		  show_ordered_flags(__entry->flags),
  		  __entry->compress_type, __entry->refs)
  );
  
  DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_add,
  
  	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
  
  	TP_ARGS(inode, ordered)
  );
  
  DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_remove,
  
  	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
  
  	TP_ARGS(inode, ordered)
  );
  
  DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_start,
  
  	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
  
  	TP_ARGS(inode, ordered)
  );
  
  DEFINE_EVENT(btrfs__ordered_extent, btrfs_ordered_extent_put,
  
  	TP_PROTO(struct inode *inode, struct btrfs_ordered_extent *ordered),
  
  	TP_ARGS(inode, ordered)
  );
  
  DECLARE_EVENT_CLASS(btrfs__writepage,
  
  	TP_PROTO(struct page *page, struct inode *inode,
  		 struct writeback_control *wbc),
  
  	TP_ARGS(page, inode, wbc),
  
  	TP_STRUCT__entry(
  		__field(	ino_t,  ino			)
  		__field(	pgoff_t,  index			)
  		__field(	long,   nr_to_write		)
  		__field(	long,   pages_skipped		)
  		__field(	loff_t, range_start		)
  		__field(	loff_t, range_end		)
  		__field(	char,   for_kupdate		)
  		__field(	char,   for_reclaim		)
  		__field(	char,   range_cyclic		)
  		__field(	pgoff_t,  writeback_index	)
  		__field(	u64,    root_objectid		)
  	),
  
  	TP_fast_assign(
  		__entry->ino		= inode->i_ino;
  		__entry->index		= page->index;
  		__entry->nr_to_write	= wbc->nr_to_write;
  		__entry->pages_skipped	= wbc->pages_skipped;
  		__entry->range_start	= wbc->range_start;
  		__entry->range_end	= wbc->range_end;
  		__entry->for_kupdate	= wbc->for_kupdate;
  		__entry->for_reclaim	= wbc->for_reclaim;
  		__entry->range_cyclic	= wbc->range_cyclic;
  		__entry->writeback_index = inode->i_mapping->writeback_index;
  		__entry->root_objectid	=
  				 BTRFS_I(inode)->root->root_key.objectid;
  	),
  
  	TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, "
  		  "nr_to_write = %ld, pages_skipped = %ld, range_start = %llu, "
  		  "range_end = %llu, for_kupdate = %d, "
  		  "for_reclaim = %d, range_cyclic = %d, writeback_index = %lu",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long)__entry->ino, __entry->index,
  		  __entry->nr_to_write, __entry->pages_skipped,
  		  __entry->range_start, __entry->range_end,
  		  __entry->for_kupdate,
  		  __entry->for_reclaim, __entry->range_cyclic,
  		  (unsigned long)__entry->writeback_index)
  );
  
  DEFINE_EVENT(btrfs__writepage, __extent_writepage,
  
  	TP_PROTO(struct page *page, struct inode *inode,
  		 struct writeback_control *wbc),
  
  	TP_ARGS(page, inode, wbc)
  );
  
  TRACE_EVENT(btrfs_writepage_end_io_hook,
  
  	TP_PROTO(struct page *page, u64 start, u64 end, int uptodate),
  
  	TP_ARGS(page, start, end, uptodate),
  
  	TP_STRUCT__entry(
  		__field(	ino_t,	 ino		)
  		__field(	pgoff_t, index		)
  		__field(	u64,	 start		)
  		__field(	u64,	 end		)
  		__field(	int,	 uptodate	)
  		__field(	u64,    root_objectid	)
  	),
  
  	TP_fast_assign(
  		__entry->ino	= page->mapping->host->i_ino;
  		__entry->index	= page->index;
  		__entry->start	= start;
  		__entry->end	= end;
  		__entry->uptodate = uptodate;
  		__entry->root_objectid	=
  			 BTRFS_I(page->mapping->host)->root->root_key.objectid;
  	),
  
  	TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, start = %llu, "
  		  "end = %llu, uptodate = %d",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long)__entry->ino, (unsigned long)__entry->index,
  		  (unsigned long long)__entry->start,
  		  (unsigned long long)__entry->end, __entry->uptodate)
  );
  
  TRACE_EVENT(btrfs_sync_file,
  
  	TP_PROTO(struct file *file, int datasync),
  
  	TP_ARGS(file, datasync),
  
  	TP_STRUCT__entry(
  		__field(	ino_t,  ino		)
  		__field(	ino_t,  parent		)
  		__field(	int,    datasync	)
  		__field(	u64,    root_objectid	)
  	),
  
  	TP_fast_assign(
  		struct dentry *dentry = file->f_path.dentry;
  		struct inode *inode = dentry->d_inode;
  
  		__entry->ino		= inode->i_ino;
  		__entry->parent		= dentry->d_parent->d_inode->i_ino;
  		__entry->datasync	= datasync;
  		__entry->root_objectid	=
  				 BTRFS_I(inode)->root->root_key.objectid;
  	),
  
  	TP_printk("root = %llu(%s), ino = %ld, parent = %ld, datasync = %d",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long)__entry->ino, (unsigned long)__entry->parent,
  		  __entry->datasync)
  );
  
  TRACE_EVENT(btrfs_sync_fs,
  
  	TP_PROTO(int wait),
  
  	TP_ARGS(wait),
  
  	TP_STRUCT__entry(
  		__field(	int,  wait		)
  	),
  
  	TP_fast_assign(
  		__entry->wait	= wait;
  	),
  
  	TP_printk("wait = %d", __entry->wait)
  );
  
  #define show_ref_action(action)						\
  	__print_symbolic(action,					\
  		{ BTRFS_ADD_DELAYED_REF,    "ADD_DELAYED_REF" },	\
  		{ BTRFS_DROP_DELAYED_REF,   "DROP_DELAYED_REF" },	\
  		{ BTRFS_ADD_DELAYED_EXTENT, "ADD_DELAYED_EXTENT" }, 	\
  		{ BTRFS_UPDATE_DELAYED_HEAD, "UPDATE_DELAYED_HEAD" })
  			
  
  DECLARE_EVENT_CLASS(btrfs_delayed_tree_ref,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_tree_ref *full_ref,
  		 int action),
  
  	TP_ARGS(ref, full_ref, action),
  
  	TP_STRUCT__entry(
  		__field(	u64,  bytenr		)
  		__field(	u64,  num_bytes		)
  		__field(	int,  action		) 
  		__field(	u64,  parent		)
  		__field(	u64,  ref_root		)
  		__field(	int,  level		)
  		__field(	int,  type		)
  		__field(	u64,  seq		)
  	),
  
  	TP_fast_assign(
  		__entry->bytenr		= ref->bytenr;
  		__entry->num_bytes	= ref->num_bytes;
  		__entry->action		= action;
  		__entry->parent		= full_ref->parent;
  		__entry->ref_root	= full_ref->root;
  		__entry->level		= full_ref->level;
  		__entry->type		= ref->type;
  		__entry->seq		= ref->seq;
  	),
  
  	TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
  		  "parent = %llu(%s), ref_root = %llu(%s), level = %d, "
  		  "type = %s, seq = %llu",
  		  (unsigned long long)__entry->bytenr,
  		  (unsigned long long)__entry->num_bytes,
  		  show_ref_action(__entry->action),
  		  show_root_type(__entry->parent),
  		  show_root_type(__entry->ref_root),
  		  __entry->level, show_ref_type(__entry->type),
  		  (unsigned long long)__entry->seq)
  );
  
  DEFINE_EVENT(btrfs_delayed_tree_ref,  add_delayed_tree_ref,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_tree_ref *full_ref,
  		 int action),
  
  	TP_ARGS(ref, full_ref, action)
  );
  
  DEFINE_EVENT(btrfs_delayed_tree_ref,  run_delayed_tree_ref,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_tree_ref *full_ref,
  		 int action),
  
  	TP_ARGS(ref, full_ref, action)
  );
  
  DECLARE_EVENT_CLASS(btrfs_delayed_data_ref,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_data_ref *full_ref,
  		 int action),
  
  	TP_ARGS(ref, full_ref, action),
  
  	TP_STRUCT__entry(
  		__field(	u64,  bytenr		)
  		__field(	u64,  num_bytes		)
  		__field(	int,  action		) 
  		__field(	u64,  parent		)
  		__field(	u64,  ref_root		)
  		__field(	u64,  owner		)
  		__field(	u64,  offset		)
  		__field(	int,  type		)
  		__field(	u64,  seq		)
  	),
  
  	TP_fast_assign(
  		__entry->bytenr		= ref->bytenr;
  		__entry->num_bytes	= ref->num_bytes;
  		__entry->action		= action;
  		__entry->parent		= full_ref->parent;
  		__entry->ref_root	= full_ref->root;
  		__entry->owner		= full_ref->objectid;
  		__entry->offset		= full_ref->offset;
  		__entry->type		= ref->type;
  		__entry->seq		= ref->seq;
  	),
  
  	TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, "
  		  "parent = %llu(%s), ref_root = %llu(%s), owner = %llu, "
  		  "offset = %llu, type = %s, seq = %llu",
  		  (unsigned long long)__entry->bytenr,
  		  (unsigned long long)__entry->num_bytes,
  		  show_ref_action(__entry->action),
  		  show_root_type(__entry->parent),
  		  show_root_type(__entry->ref_root),
  		  (unsigned long long)__entry->owner,
  		  (unsigned long long)__entry->offset,
  		  show_ref_type(__entry->type),
  		  (unsigned long long)__entry->seq)
  );
  
  DEFINE_EVENT(btrfs_delayed_data_ref,  add_delayed_data_ref,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_data_ref *full_ref,
  		 int action),
  
  	TP_ARGS(ref, full_ref, action)
  );
  
  DEFINE_EVENT(btrfs_delayed_data_ref,  run_delayed_data_ref,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_data_ref *full_ref,
  		 int action),
  
  	TP_ARGS(ref, full_ref, action)
  );
  
  DECLARE_EVENT_CLASS(btrfs_delayed_ref_head,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_ref_head *head_ref,
  		 int action),
  
  	TP_ARGS(ref, head_ref, action),
  
  	TP_STRUCT__entry(
  		__field(	u64,  bytenr		)
  		__field(	u64,  num_bytes		)
  		__field(	int,  action		) 
  		__field(	int,  is_data		)
  	),
  
  	TP_fast_assign(
  		__entry->bytenr		= ref->bytenr;
  		__entry->num_bytes	= ref->num_bytes;
  		__entry->action		= action;
  		__entry->is_data	= head_ref->is_data;
  	),
  
  	TP_printk("bytenr = %llu, num_bytes = %llu, action = %s, is_data = %d",
  		  (unsigned long long)__entry->bytenr,
  		  (unsigned long long)__entry->num_bytes,
  		  show_ref_action(__entry->action),
  		  __entry->is_data)
  );
  
  DEFINE_EVENT(btrfs_delayed_ref_head,  add_delayed_ref_head,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_ref_head *head_ref,
  		 int action),
  
  	TP_ARGS(ref, head_ref, action)
  );
  
  DEFINE_EVENT(btrfs_delayed_ref_head,  run_delayed_ref_head,
  
  	TP_PROTO(struct btrfs_delayed_ref_node *ref,
  		 struct btrfs_delayed_ref_head *head_ref,
  		 int action),
  
  	TP_ARGS(ref, head_ref, action)
  );
  
  #define show_chunk_type(type)					\
  	__print_flags(type, "|",				\
  		{ BTRFS_BLOCK_GROUP_DATA, 	"DATA"	},	\
  		{ BTRFS_BLOCK_GROUP_SYSTEM, 	"SYSTEM"},	\
  		{ BTRFS_BLOCK_GROUP_METADATA, 	"METADATA"},	\
  		{ BTRFS_BLOCK_GROUP_RAID0, 	"RAID0" },	\
  		{ BTRFS_BLOCK_GROUP_RAID1, 	"RAID1" },	\
  		{ BTRFS_BLOCK_GROUP_DUP, 	"DUP"	},	\
  		{ BTRFS_BLOCK_GROUP_RAID10, 	"RAID10"},	\
  		{ BTRFS_BLOCK_GROUP_RAID5, 	"RAID5"	},	\
  		{ BTRFS_BLOCK_GROUP_RAID6, 	"RAID6"	})
  
  DECLARE_EVENT_CLASS(btrfs__chunk,
  
  	TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
  		 u64 offset, u64 size),
  
  	TP_ARGS(root, map, offset, size),
  
  	TP_STRUCT__entry(
  		__field(	int,  num_stripes		)
  		__field(	u64,  type			)
  		__field(	int,  sub_stripes		)
  		__field(	u64,  offset			)
  		__field(	u64,  size			)
  		__field(	u64,  root_objectid		)
  	),
  
  	TP_fast_assign(
  		__entry->num_stripes	= map->num_stripes;
  		__entry->type		= map->type;
  		__entry->sub_stripes	= map->sub_stripes;
  		__entry->offset		= offset;
  		__entry->size		= size;
  		__entry->root_objectid	= root->root_key.objectid;
  	),
  
  	TP_printk("root = %llu(%s), offset = %llu, size = %llu, "
  		  "num_stripes = %d, sub_stripes = %d, type = %s",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long long)__entry->offset,
  		  (unsigned long long)__entry->size,
  		  __entry->num_stripes, __entry->sub_stripes,
  		  show_chunk_type(__entry->type))
  );
  
  DEFINE_EVENT(btrfs__chunk,  btrfs_chunk_alloc,
  
  	TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
  		 u64 offset, u64 size),
  
  	TP_ARGS(root, map, offset, size)
  );
  
  DEFINE_EVENT(btrfs__chunk,  btrfs_chunk_free,
  
  	TP_PROTO(struct btrfs_root *root, struct map_lookup *map,
  		 u64 offset, u64 size),
  
  	TP_ARGS(root, map, offset, size)
  );
  
  TRACE_EVENT(btrfs_cow_block,
  
  	TP_PROTO(struct btrfs_root *root, struct extent_buffer *buf,
  		 struct extent_buffer *cow),
  
  	TP_ARGS(root, buf, cow),
  
  	TP_STRUCT__entry(
  		__field(	u64,  root_objectid		)
  		__field(	u64,  buf_start			)
  		__field(	int,  refs			)
  		__field(	u64,  cow_start			)
  		__field(	int,  buf_level			)
  		__field(	int,  cow_level			)
  	),
  
  	TP_fast_assign(
  		__entry->root_objectid	= root->root_key.objectid;
  		__entry->buf_start	= buf->start;
  		__entry->refs		= atomic_read(&buf->refs);
  		__entry->cow_start	= cow->start;
  		__entry->buf_level	= btrfs_header_level(buf);
  		__entry->cow_level	= btrfs_header_level(cow);
  	),
  
  	TP_printk("root = %llu(%s), refs = %d, orig_buf = %llu "
  		  "(orig_level = %d), cow_buf = %llu (cow_level = %d)",
  		  show_root_type(__entry->root_objectid),
  		  __entry->refs,
  		  (unsigned long long)__entry->buf_start,
  		  __entry->buf_level,
  		  (unsigned long long)__entry->cow_start,
  		  __entry->cow_level)
  );
  
  TRACE_EVENT(btrfs_space_reservation,
  
  	TP_PROTO(struct btrfs_fs_info *fs_info, char *type, u64 val,
  		 u64 bytes, int reserve),
  
  	TP_ARGS(fs_info, type, val, bytes, reserve),
  
  	TP_STRUCT__entry(
  		__array(	u8,	fsid,	BTRFS_UUID_SIZE	)
  		__string(	type,	type			)
  		__field(	u64,	val			)
  		__field(	u64,	bytes			)
  		__field(	int,	reserve			)
  	),
  
  	TP_fast_assign(
  		memcpy(__entry->fsid, fs_info->fsid, BTRFS_UUID_SIZE);
  		__assign_str(type, type);
  		__entry->val		= val;
  		__entry->bytes		= bytes;
  		__entry->reserve	= reserve;
  	),
  
  	TP_printk("%pU: %s: %Lu %s %Lu", __entry->fsid, __get_str(type),
  		  __entry->val, __entry->reserve ? "reserve" : "release",
  		  __entry->bytes)
  );
  
  DECLARE_EVENT_CLASS(btrfs__reserved_extent,
  
  	TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
  
  	TP_ARGS(root, start, len),
  
  	TP_STRUCT__entry(
  		__field(	u64,  root_objectid		)
  		__field(	u64,  start			)
  		__field(	u64,  len			)
  	),
  
  	TP_fast_assign(
  		__entry->root_objectid	= root->root_key.objectid;
  		__entry->start		= start;
  		__entry->len		= len;
  	),
  
  	TP_printk("root = %llu(%s), start = %llu, len = %llu",
  		  show_root_type(__entry->root_objectid),
  		  (unsigned long long)__entry->start,
  		  (unsigned long long)__entry->len)
  );
  
  DEFINE_EVENT(btrfs__reserved_extent,  btrfs_reserved_extent_alloc,
  
  	TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
  
  	TP_ARGS(root, start, len)
  );
  
  DEFINE_EVENT(btrfs__reserved_extent,  btrfs_reserved_extent_free,
  
  	TP_PROTO(struct btrfs_root *root, u64 start, u64 len),
  
  	TP_ARGS(root, start, len)
  );
  
  TRACE_EVENT(find_free_extent,
  
  	TP_PROTO(struct btrfs_root *root, u64 num_bytes, u64 empty_size,
  		 u64 data),
  
  	TP_ARGS(root, num_bytes, empty_size, data),
  
  	TP_STRUCT__entry(
  		__field(	u64,	root_objectid		)
  		__field(	u64,	num_bytes		)
  		__field(	u64,	empty_size		)
  		__field(	u64,	data			)
  	),
  
  	TP_fast_assign(
  		__entry->root_objectid	= root->root_key.objectid;
  		__entry->num_bytes	= num_bytes;
  		__entry->empty_size	= empty_size;
  		__entry->data		= data;
  	),
  
  	TP_printk("root = %Lu(%s), len = %Lu, empty_size = %Lu, "
  		  "flags = %Lu(%s)", show_root_type(__entry->root_objectid),
  		  __entry->num_bytes, __entry->empty_size, __entry->data,
  		  __print_flags((unsigned long)__entry->data, "|",
  				 BTRFS_GROUP_FLAGS))
  );
  
  DECLARE_EVENT_CLASS(btrfs__reserve_extent,
  
  	TP_PROTO(struct btrfs_root *root,
  		 struct btrfs_block_group_cache *block_group, u64 start,
  		 u64 len),
  
  	TP_ARGS(root, block_group, start, len),
  
  	TP_STRUCT__entry(
  		__field(	u64,	root_objectid		)
  		__field(	u64,	bg_objectid		)
  		__field(	u64,	flags			)
  		__field(	u64,	start			)
  		__field(	u64,	len			)
  	),
  
  	TP_fast_assign(
  		__entry->root_objectid	= root->root_key.objectid;
  		__entry->bg_objectid	= block_group->key.objectid;
  		__entry->flags		= block_group->flags;
  		__entry->start		= start;
  		__entry->len		= len;
  	),
  
  	TP_printk("root = %Lu(%s), block_group = %Lu, flags = %Lu(%s), "
  		  "start = %Lu, len = %Lu",
  		  show_root_type(__entry->root_objectid), __entry->bg_objectid,
  		  __entry->flags, __print_flags((unsigned long)__entry->flags,
  						"|", BTRFS_GROUP_FLAGS),
  		  __entry->start, __entry->len)
  );
  
  DEFINE_EVENT(btrfs__reserve_extent, btrfs_reserve_extent,
  
  	TP_PROTO(struct btrfs_root *root,
  		 struct btrfs_block_group_cache *block_group, u64 start,
  		 u64 len),
  
  	TP_ARGS(root, block_group, start, len)
  );
  
  DEFINE_EVENT(btrfs__reserve_extent, btrfs_reserve_extent_cluster,
  
  	TP_PROTO(struct btrfs_root *root,
  		 struct btrfs_block_group_cache *block_group, u64 start,
  		 u64 len),
  
  	TP_ARGS(root, block_group, start, len)
  );
  
  TRACE_EVENT(btrfs_find_cluster,
  
  	TP_PROTO(struct btrfs_block_group_cache *block_group, u64 start,
  		 u64 bytes, u64 empty_size, u64 min_bytes),
  
  	TP_ARGS(block_group, start, bytes, empty_size, min_bytes),
  
  	TP_STRUCT__entry(
  		__field(	u64,	bg_objectid		)
  		__field(	u64,	flags			)
  		__field(	u64,	start			)
  		__field(	u64,	bytes			)
  		__field(	u64,	empty_size		)
  		__field(	u64,	min_bytes		)
  	),
  
  	TP_fast_assign(
  		__entry->bg_objectid	= block_group->key.objectid;
  		__entry->flags		= block_group->flags;
  		__entry->start		= start;
  		__entry->bytes		= bytes;
  		__entry->empty_size	= empty_size;
  		__entry->min_bytes	= min_bytes;
  	),
  
  	TP_printk("block_group = %Lu, flags = %Lu(%s), start = %Lu, len = %Lu,"
  		  " empty_size = %Lu, min_bytes = %Lu", __entry->bg_objectid,
  		  __entry->flags,
  		  __print_flags((unsigned long)__entry->flags, "|",
  				BTRFS_GROUP_FLAGS), __entry->start,
  		  __entry->bytes, __entry->empty_size,  __entry->min_bytes)
  );
  
  TRACE_EVENT(btrfs_failed_cluster_setup,
  
  	TP_PROTO(struct btrfs_block_group_cache *block_group),
  
  	TP_ARGS(block_group),
  
  	TP_STRUCT__entry(
  		__field(	u64,	bg_objectid		)
  	),
  
  	TP_fast_assign(
  		__entry->bg_objectid	= block_group->key.objectid;
  	),
  
  	TP_printk("block_group = %Lu", __entry->bg_objectid)
  );
  
  TRACE_EVENT(btrfs_setup_cluster,
  
  	TP_PROTO(struct btrfs_block_group_cache *block_group,
  		 struct btrfs_free_cluster *cluster, u64 size, int bitmap),
  
  	TP_ARGS(block_group, cluster, size, bitmap),
  
  	TP_STRUCT__entry(
  		__field(	u64,	bg_objectid		)
  		__field(	u64,	flags			)
  		__field(	u64,	start			)
  		__field(	u64,	max_size		)
  		__field(	u64,	size			)
  		__field(	int,	bitmap			)
  	),
  
  	TP_fast_assign(
  		__entry->bg_objectid	= block_group->key.objectid;
  		__entry->flags		= block_group->flags;
  		__entry->start		= cluster->window_start;
  		__entry->max_size	= cluster->max_size;
  		__entry->size		= size;
  		__entry->bitmap		= bitmap;
  	),
  
  	TP_printk("block_group = %Lu, flags = %Lu(%s), window_start = %Lu, "
  		  "size = %Lu, max_size = %Lu, bitmap = %d",
  		  __entry->bg_objectid,
  		  __entry->flags,
  		  __print_flags((unsigned long)__entry->flags, "|",
  				BTRFS_GROUP_FLAGS), __entry->start,
  		  __entry->size, __entry->max_size, __entry->bitmap)
  );
  
  struct extent_state;
  TRACE_EVENT(alloc_extent_state,
  
  	TP_PROTO(struct extent_state *state, gfp_t mask, unsigned long IP),
  
  	TP_ARGS(state, mask, IP),
  
  	TP_STRUCT__entry(
  		__field(struct extent_state *, state)
  		__field(gfp_t, mask)
  		__field(unsigned long, ip)
  	),
  
  	TP_fast_assign(
  		__entry->state	= state,
  		__entry->mask	= mask,
  		__entry->ip	= IP
  	),
  
  	TP_printk("state=%p; mask = %s; caller = %pF", __entry->state,
  		  show_gfp_flags(__entry->mask), (void *)__entry->ip)
  );
  
  TRACE_EVENT(free_extent_state,
  
  	TP_PROTO(struct extent_state *state, unsigned long IP),
  
  	TP_ARGS(state, IP),
  
  	TP_STRUCT__entry(
  		__field(struct extent_state *, state)
  		__field(unsigned long, ip)
  	),
  
  	TP_fast_assign(
  		__entry->state	= state,
  		__entry->ip = IP
  	),
  
  	TP_printk(" state=%p; caller = %pF", __entry->state,
  		  (void *)__entry->ip)
  );
  
  DECLARE_EVENT_CLASS(btrfs__work,
  
  	TP_PROTO(struct btrfs_work *work),
  
  	TP_ARGS(work),
  
  	TP_STRUCT__entry(
  		__field(	void *,	work			)
  		__field(	void *, wq			)
  		__field(	void *,	func			)
  		__field(	void *,	ordered_func		)
  		__field(	void *,	ordered_free		)
  	),
  
  	TP_fast_assign(
  		__entry->work		= work;
  		__entry->wq		= work->wq;
  		__entry->func		= work->func;
  		__entry->ordered_func	= work->ordered_func;
  		__entry->ordered_free	= work->ordered_free;
  	),
  
  	TP_printk("work=%p, wq=%p, func=%p, ordered_func=%p, ordered_free=%p",
  		  __entry->work, __entry->wq, __entry->func,
  		  __entry->ordered_func, __entry->ordered_free)
  );
  
  /* For situiations that the work is freed */
  DECLARE_EVENT_CLASS(btrfs__work__done,
  
  	TP_PROTO(struct btrfs_work *work),
  
  	TP_ARGS(work),
  
  	TP_STRUCT__entry(
  		__field(	void *,	work			)
  	),
  
  	TP_fast_assign(
  		__entry->work		= work;
  	),
  
  	TP_printk("work->%p", __entry->work)
  );
  
  DEFINE_EVENT(btrfs__work, btrfs_work_queued,
  
  	TP_PROTO(struct btrfs_work *work),
  
  	TP_ARGS(work)
  );
  
  DEFINE_EVENT(btrfs__work, btrfs_work_sched,
  
  	TP_PROTO(struct btrfs_work *work),
  
  	TP_ARGS(work)
  );
  
  DEFINE_EVENT(btrfs__work, btrfs_normal_work_done,
  
  	TP_PROTO(struct btrfs_work *work),
  
  	TP_ARGS(work)
  );
  
  DEFINE_EVENT(btrfs__work__done, btrfs_all_work_done,
  
  	TP_PROTO(struct btrfs_work *work),
  
  	TP_ARGS(work)
  );
  
  DEFINE_EVENT(btrfs__work, btrfs_ordered_sched,
  
  	TP_PROTO(struct btrfs_work *work),
  
  	TP_ARGS(work)
  );
  
  DECLARE_EVENT_CLASS(btrfs__workqueue,
  
  	TP_PROTO(struct __btrfs_workqueue *wq, const char *name, int high),
  
  	TP_ARGS(wq, name, high),
  
  	TP_STRUCT__entry(
  		__field(	void *,	wq			)
  		__string(	name,	name			)
  		__field(	int ,	high			)
  	),
  
  	TP_fast_assign(
  		__entry->wq		= wq;
  		__assign_str(name, name);
  		__entry->high		= high;
  	),
  
  	TP_printk("name=%s%s, wq=%p", __get_str(name),
  		  __print_flags(__entry->high, "",
  				{(WQ_HIGHPRI),	"-high"}),
  		  __entry->wq)
  );
  
  DEFINE_EVENT(btrfs__workqueue, btrfs_workqueue_alloc,
  
  	TP_PROTO(struct __btrfs_workqueue *wq, const char *name, int high),
  
  	TP_ARGS(wq, name, high)
  );
  
  DECLARE_EVENT_CLASS(btrfs__workqueue_done,
  
  	TP_PROTO(struct __btrfs_workqueue *wq),
  
  	TP_ARGS(wq),
  
  	TP_STRUCT__entry(
  		__field(	void *,	wq			)
  	),
  
  	TP_fast_assign(
  		__entry->wq		= wq;
  	),
  
  	TP_printk("wq=%p", __entry->wq)
  );
  
  DEFINE_EVENT(btrfs__workqueue_done, btrfs_workqueue_destroy,
  
  	TP_PROTO(struct __btrfs_workqueue *wq),
  
  	TP_ARGS(wq)
  );
  
  #define show_oper_type(type)						\
  	__print_symbolic(type,						\
  		{ BTRFS_QGROUP_OPER_ADD_EXCL, 	"OPER_ADD_EXCL" },	\
  		{ BTRFS_QGROUP_OPER_ADD_SHARED, "OPER_ADD_SHARED" },	\
  		{ BTRFS_QGROUP_OPER_SUB_EXCL, 	"OPER_SUB_EXCL" },	\
  		{ BTRFS_QGROUP_OPER_SUB_SHARED,	"OPER_SUB_SHARED" })
  
  DECLARE_EVENT_CLASS(btrfs_qgroup_oper,
  
  	TP_PROTO(struct btrfs_qgroup_operation *oper),
  
  	TP_ARGS(oper),
  
  	TP_STRUCT__entry(
  		__field(	u64,  ref_root		)
  		__field(	u64,  bytenr		)
  		__field(	u64,  num_bytes		)
  		__field(	u64,  seq		)
  		__field(	int,  type		)
  		__field(	u64,  elem_seq		)
  	),
  
  	TP_fast_assign(
  		__entry->ref_root	= oper->ref_root;
  		__entry->bytenr		= oper->bytenr,
  		__entry->num_bytes	= oper->num_bytes;
  		__entry->seq 		= oper->seq;
  		__entry->type		= oper->type;
  		__entry->elem_seq	= oper->elem.seq;
  	),
  
  	TP_printk("ref_root = %llu, bytenr = %llu, num_bytes = %llu, "
  		  "seq = %llu, elem.seq = %llu, type = %s",
  		  (unsigned long long)__entry->ref_root,
  		  (unsigned long long)__entry->bytenr,
  		  (unsigned long long)__entry->num_bytes,
  		  (unsigned long long)__entry->seq,
  		  (unsigned long long)__entry->elem_seq,
  		  show_oper_type(__entry->type))
  );
  
  DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_account,
  
  	TP_PROTO(struct btrfs_qgroup_operation *oper),
  
  	TP_ARGS(oper)
  );
  
  DEFINE_EVENT(btrfs_qgroup_oper, btrfs_qgroup_record_ref,
  
  	TP_PROTO(struct btrfs_qgroup_operation *oper),
  
  	TP_ARGS(oper)
  );
  
  #endif /* _TRACE_BTRFS_H */
  
  /* This part must be outside protection */
  #include <trace/define_trace.h>
  