VV_COPYONWRITE
if (vp->v_vflag & VV_COPYONWRITE)
VV_CACHEDLABEL | VV_VMSIZEVNLOCK | VV_COPYONWRITE | VV_SYSTEM |
(devvp->v_vflag & VV_COPYONWRITE) &&
devvp->v_vflag |= VV_COPYONWRITE;
if ((devvp->v_vflag & VV_COPYONWRITE) == 0)
(devvp->v_vflag & VV_COPYONWRITE) == 0)
devvp->v_vflag &= ~VV_COPYONWRITE;
devvp->v_vflag |= VV_COPYONWRITE;
if (ump->um_devvp->v_vflag & VV_COPYONWRITE) {
if ((vp->v_vflag & VV_COPYONWRITE) && nocopy == 0 &&