diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 23273d0e6f22..3804029978ea 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -374,8 +374,7 @@ noinline_for_stack bool find_lock_delalloc_range(struct inode *inode,
 	struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
 	const u64 orig_start = *start;
 	const u64 orig_end = *end;
-	/* The sanity tests may not set a valid fs_info. */
-	u64 max_bytes = fs_info ? fs_info->max_extent_size : BTRFS_MAX_EXTENT_SIZE;
+	u64 max_bytes = fs_info->max_extent_size;
 	u64 delalloc_start;
 	u64 delalloc_end;
 	bool found;