chex              839 fs/ext4/extents.c 		struct ext4_extent *chex, *ex;
chex              842 fs/ext4/extents.c 		chex = ex = EXT_FIRST_EXTENT(eh);
chex              848 fs/ext4/extents.c 			chex = ex;
chex              850 fs/ext4/extents.c 		BUG_ON(chex != path->p_ext);