diff --git a/fs/btrfs/tree-log.h b/fs/btrfs/tree-log.h
index 91b145f..7f5b41b 100644
--- a/fs/btrfs/tree-log.h
+++ b/fs/btrfs/tree-log.h
@@ -19,6 +19,9 @@
 #ifndef __TREE_LOG_
 #define __TREE_LOG_
 
+#include "ctree.h"
+#include "transaction.h"
+
 /* return value for btrfs_log_dentry_safe that means we don't need to log it at all */
 #define BTRFS_NO_LOG_SYNC 256
 
@@ -35,6 +38,19 @@
 	INIT_LIST_HEAD(&ctx->list);
 }
 
+static inline void btrfs_set_log_full_commit(struct btrfs_fs_info *fs_info,
+					     struct btrfs_trans_handle *trans)
+{
+	ACCESS_ONCE(fs_info->last_trans_log_full_commit) = trans->transid;
+}
+
+static inline int btrfs_need_log_full_commit(struct btrfs_fs_info *fs_info,
+					     struct btrfs_trans_handle *trans)
+{
+	return ACCESS_ONCE(fs_info->last_trans_log_full_commit) ==
+		trans->transid;
+}
+
 int btrfs_sync_log(struct btrfs_trans_handle *trans,
 		   struct btrfs_root *root, struct btrfs_log_ctx *ctx);
 int btrfs_free_log(struct btrfs_trans_handle *trans, struct btrfs_root *root);