Btrfs/tracepoint: update delayed ref tracepoints

This shows exactly how btrfs processes the delayed refs onto disks,
which is very helpful on understanding delayed ref mechanism and
debugging related bugs.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

1 files changed, 57 insertions, 3 deletions

diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 2902657ba766..45702c3c3837 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -439,7 +439,7 @@ TRACE_EVENT(btrfs_sync_fs,
                 { BTRFS_UPDATE_DELAYED_HEAD, "UPDATE_DELAYED_HEAD" })
                         
 
-TRACE_EVENT(btrfs_delayed_tree_ref,
+DECLARE_EVENT_CLASS(btrfs_delayed_tree_ref,
 
         TP_PROTO(struct btrfs_delayed_ref_node *ref,
                  struct btrfs_delayed_tree_ref *full_ref,
@@ -481,7 +481,25 @@ TRACE_EVENT(btrfs_delayed_tree_ref,
                   (unsigned long long)__entry->seq)
 );
 
-TRACE_EVENT(btrfs_delayed_data_ref,
+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,
@@ -527,7 +545,25 @@ TRACE_EVENT(btrfs_delayed_data_ref,
                   (unsigned long long)__entry->seq)
 );
 
-TRACE_EVENT(btrfs_delayed_ref_head,
+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,
@@ -556,6 +592,24 @@ TRACE_EVENT(btrfs_delayed_ref_head,
                   __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"  },      \