Symbol: QB_BACK
usr/src/uts/common/os/streamio.c
3055
if ((myqbp->qb_flag & QB_BACK)) {
usr/src/uts/common/os/strsubr.c
3682
qbp->qb_flag &= ~QB_BACK;
usr/src/uts/common/os/strsubr.c
4142
qbp->qb_flag |= QB_BACK;