diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 60f5f68d892dffa16c353dc902fbeee31868dbfd..30cf917a58e92c4f75d1bf054a7d4eac26d76f86 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -676,9 +676,7 @@ alloc_extent_state_atomic(struct extent_state *prealloc)
 
 static void extent_io_tree_panic(struct extent_io_tree *tree, int err)
 {
-	struct inode *inode = tree->private_data;
-
-	btrfs_panic(btrfs_sb(inode->i_sb), err,
+	btrfs_panic(tree->fs_info, err,
 	"locking error: extent tree was modified by another thread while locked");
 }