Btrfs: update delayed ref's tracepoints to show sequence

We've added a new field 'sequence' to delayed ref node, so update related
tracepoints.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>

include/trace/events/btrfs.h

@@ -445,6 +445,7 @@ TRACE_EVENT(btrfs_delayed_tree_ref,
 		__field(	u64,  ref_root		)
 		__field(	int,  level		)
 		__field(	int,  type		)
+		__field(	u64,  seq		)
 	),
 
 	TP_fast_assign(
@@ -455,17 +456,19 @@ TRACE_EVENT(btrfs_delayed_tree_ref,
 		__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",
+		  "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))
+		  __entry->level, show_ref_type(__entry->type),
+		  (unsigned long long)__entry->seq)
 );
 
 TRACE_EVENT(btrfs_delayed_data_ref,
@@ -485,6 +488,7 @@ TRACE_EVENT(btrfs_delayed_data_ref,
 		__field(	u64,  owner		)
 		__field(	u64,  offset		)
 		__field(	int,  type		)
+		__field(	u64,  seq		)
 	),
 
 	TP_fast_assign(
@@ -496,11 +500,12 @@ TRACE_EVENT(btrfs_delayed_data_ref,
 		__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",
+		  "offset = %llu, type = %s, seq = %llu",
 		  (unsigned long long)__entry->bytenr,
 		  (unsigned long long)__entry->num_bytes,
 		  show_ref_action(__entry->action),
@@ -508,7 +513,8 @@ TRACE_EVENT(btrfs_delayed_data_ref,
 		  show_root_type(__entry->ref_root),
 		  (unsigned long long)__entry->owner,
 		  (unsigned long long)__entry->offset,
-		  show_ref_type(__entry->type))
+		  show_ref_type(__entry->type),
+		  (unsigned long long)__entry->seq)
 );
 
 TRACE_EVENT(btrfs_delayed_ref_head,