undo_bg 2389 fs/ocfs2/suballoc.c struct ocfs2_group_desc *undo_bg = NULL; undo_bg 2410 fs/ocfs2/suballoc.c undo_bg = (struct ocfs2_group_desc *) undo_bg 2412 fs/ocfs2/suballoc.c BUG_ON(!undo_bg); undo_bg 2421 fs/ocfs2/suballoc.c (unsigned long *) undo_bg->bg_bitmap);