257         if (secpolicy_hyprlofs_control(cr) != 0)
 258                 return (EPERM);
 259 
 260         if (mvp->v_type != VDIR)
 261                 return (ENOTDIR);
 262 
 263         if (uap->flags & MS_REMOUNT)
 264                 return (EBUSY);
 265 
 266         mutex_enter(&mvp->v_lock);
 267         if ((uap->flags & MS_OVERLAY) == 0 &&
 268             (mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
 269                 mutex_exit(&mvp->v_lock);
 270                 return (EBUSY);
 271         }
 272         mutex_exit(&mvp->v_lock);
 273 
 274         /* Having the resource be anything but "swap" doesn't make sense. */
 275         vfs_setresource(vfsp, "swap", 0);
 276 
 277         if (error = pn_get(uap->dir,
 278             (uap->flags & MS_SYSSPACE) ? UIO_SYSSPACE : UIO_USERSPACE, &dpn))

 279                 goto out;
 280 
 281         if ((hm = hyprlofs_memalloc(sizeof (hlfsmount_t), 0)) == NULL) {
 282                 pn_free(&dpn);
 283                 error = ENOMEM;
 284                 goto out;
 285         }
 286 
 287         /* Get an available minor device number for this mount */
 288         mutex_enter(&hyprlofs_minor_lock);
 289         do {
 290                 hyprlofs_minor = (hyprlofs_minor + 1) & L_MAXMIN32;
 291                 hm->hlm_dev = makedevice(hyprlofs_major, hyprlofs_minor);
 292         } while (vfs_devismounted(hm->hlm_dev));
 293         mutex_exit(&hyprlofs_minor_lock);
 294 
 295         /*
 296          * Set but don't bother entering the mutex since hlfsmount is not on
 297          * the mount list yet.
 298          */

 257         if (secpolicy_hyprlofs_control(cr) != 0)
 258                 return (EPERM);
 259 
 260         if (mvp->v_type != VDIR)
 261                 return (ENOTDIR);
 262 
 263         if (uap->flags & MS_REMOUNT)
 264                 return (EBUSY);
 265 
 266         mutex_enter(&mvp->v_lock);
 267         if ((uap->flags & MS_OVERLAY) == 0 &&
 268             (mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
 269                 mutex_exit(&mvp->v_lock);
 270                 return (EBUSY);
 271         }
 272         mutex_exit(&mvp->v_lock);
 273 
 274         /* Having the resource be anything but "swap" doesn't make sense. */
 275         vfs_setresource(vfsp, "swap", 0);
 276 
 277         if ((error = pn_get(uap->dir,
 278             (uap->flags & MS_SYSSPACE) ? UIO_SYSSPACE : UIO_USERSPACE,
 279             &dpn)) != 0)
 280                 goto out;
 281 
 282         if ((hm = hyprlofs_memalloc(sizeof (hlfsmount_t), 0)) == NULL) {
 283                 pn_free(&dpn);
 284                 error = ENOMEM;
 285                 goto out;
 286         }
 287 
 288         /* Get an available minor device number for this mount */
 289         mutex_enter(&hyprlofs_minor_lock);
 290         do {
 291                 hyprlofs_minor = (hyprlofs_minor + 1) & L_MAXMIN32;
 292                 hm->hlm_dev = makedevice(hyprlofs_major, hyprlofs_minor);
 293         } while (vfs_devismounted(hm->hlm_dev));
 294         mutex_exit(&hyprlofs_minor_lock);
 295 
 296         /*
 297          * Set but don't bother entering the mutex since hlfsmount is not on
 298          * the mount list yet.
 299          */