PRELEASE_CLEAR
rflags = PRELEASE_HANG | PRELEASE_CLEAR;
Prelease(vfp->p_pshandle, PRELEASE_CLEAR);
Prelease(t->t_pshandle, PRELEASE_CLEAR);
Prelease(P, PRELEASE_CLEAR | PRELEASE_HANG);
Prelease(Proc, PRELEASE_CLEAR);
Prelease(Proc, created? PRELEASE_KILL : PRELEASE_CLEAR);
flags = PRELEASE_CLEAR;
Prelease(pctx->Pr, PRELEASE_CLEAR);
Prelease(pctx->Pr, PRELEASE_CLEAR);
if (flags & PRELEASE_CLEAR)