SMI_INT
#define SMBINTR(vp) (VTOSMI(vp)->smi_flags & SMI_INT)
sigintr(&smask, VTOSMI(vp)->smi_flags & SMI_INT);
intr = dnp->n_mount->smi_flags & SMI_INT;
smi->smi_flags |= SMI_INT;
smi->smi_flags & SMI_INT))