COMMIT_DELETE
if (tblk->xflag & COMMIT_DELETE) {
ASSERT((!(tblk->xflag & COMMIT_DELETE)) ||
} else if (tblk->xflag & COMMIT_DELETE) {
tblk->xflag |= COMMIT_DELETE;
tblk->xflag |= COMMIT_DELETE;
tblk->xflag |= COMMIT_DELETE;
tblk->xflag |= COMMIT_DELETE;