LDL_NOROLL
ul->un_flags |= LDL_NOROLL;
ASSERT(!(ul->un_flags & LDL_NOROLL));
if (ul->un_flags & (LDL_ERROR|LDL_NOROLL))
ASSERT(!(ul->un_flags & LDL_NOROLL));
ASSERT(!(logmap->mtm_ul->un_flags & LDL_NOROLL));
if (ul->un_flags & LDL_NOROLL) {
ul->un_flags &= ~LDL_NOROLL;
if (ul->un_flags & LDL_NOROLL) {
if (ufsvfsp->vfs_log && (ufsvfsp->vfs_log->un_flags & LDL_NOROLL)) {
ufsvfsp->vfs_log->un_flags &= ~LDL_NOROLL;