vcount
if (vfinddev(dev, VCHR, &vp) && vcount(vp))
if (!rootvp || !vcount(rootvp))
if (vcount(devvp) > 1 && devvp != rootvp)
if (vcount(devvp) > 1 && devvp != rootvp)
if (vcount(vp) == 2 && p != NULL && p->p_p->ps_pgrp &&
if (vcount(vp) > 1 && !xlocked)
if (vcount(vp) > 1 && !xlocked)
if (vcount(devvp) > 1 && devvp != rootvp)
ncount = vcount(devvp);
int vcount(struct vnode *);
if (vcount(devvp) > 1 && devvp != rootvp)
if (vcount(devvp) > 1 && devvp != rootvp)