76                 return (ENOTDIR);
  77 
  78         if (uap->flags & MS_REMOUNT)
  79                 return (EBUSY);
  80 
  81         mutex_enter(&mvp->v_lock);
  82         if ((uap->flags & MS_OVERLAY) == 0 &&
  83             (mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
  84                 mutex_exit(&mvp->v_lock);
  85                 return (EBUSY);
  86         }
  87         mutex_exit(&mvp->v_lock);
  88 
  89         /*
  90          * We indicate that the backing store is bootfs. We don't want to use
  91          * swap, because folks might think that this is putting all the data
  92          * into memory ala tmpfs. Rather these modules are always in memory and
  93          * there's nothing to be done about that.
  94          */
  95         vfs_setresource(vfsp, bootfs_name, 0);
  96         bfs = kmem_zalloc(sizeof (bootfs_t), KM_NOSLEEP | KM_NORMALPRI);
  97         if (bfs == NULL)
  98                 return (ENOMEM);
  99 
 100         ret = pn_get(uap->dir,
 101             (uap->flags & MS_SYSSPACE) ? UIO_SYSSPACE : UIO_USERSPACE, &dpn);
 102         if (ret != 0) {
 103                 kmem_free(bfs, sizeof (bfs));
 104                 return (ret);
 105         }
 106 
 107         bfs->bfs_minor = id_alloc(bootfs_idspace);
 108         bfs->bfs_kstat = kstat_create_zone("bootfs", bfs->bfs_minor, "bootfs",
 109             "fs", KSTAT_TYPE_NAMED,
 110             sizeof (bootfs_stat_t) / sizeof (kstat_named_t),
 111             KSTAT_FLAG_VIRTUAL, GLOBAL_ZONEID);
 112         if (bfs->bfs_kstat == NULL) {
 113                 id_free(bootfs_idspace, bfs->bfs_minor);
 114                 pn_free(&dpn);
 115                 kmem_free(bfs, sizeof (bfs));
 116                 return (ENOMEM);

  76                 return (ENOTDIR);
  77 
  78         if (uap->flags & MS_REMOUNT)
  79                 return (EBUSY);
  80 
  81         mutex_enter(&mvp->v_lock);
  82         if ((uap->flags & MS_OVERLAY) == 0 &&
  83             (mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
  84                 mutex_exit(&mvp->v_lock);
  85                 return (EBUSY);
  86         }
  87         mutex_exit(&mvp->v_lock);
  88 
  89         /*
  90          * We indicate that the backing store is bootfs. We don't want to use
  91          * swap, because folks might think that this is putting all the data
  92          * into memory ala tmpfs. Rather these modules are always in memory and
  93          * there's nothing to be done about that.
  94          */
  95         vfs_setresource(vfsp, bootfs_name, 0);
  96         bfs = kmem_zalloc(sizeof (bootfs_t), KM_NOSLEEP_LAZY);
  97         if (bfs == NULL)
  98                 return (ENOMEM);
  99 
 100         ret = pn_get(uap->dir,
 101             (uap->flags & MS_SYSSPACE) ? UIO_SYSSPACE : UIO_USERSPACE, &dpn);
 102         if (ret != 0) {
 103                 kmem_free(bfs, sizeof (bfs));
 104                 return (ret);
 105         }
 106 
 107         bfs->bfs_minor = id_alloc(bootfs_idspace);
 108         bfs->bfs_kstat = kstat_create_zone("bootfs", bfs->bfs_minor, "bootfs",
 109             "fs", KSTAT_TYPE_NAMED,
 110             sizeof (bootfs_stat_t) / sizeof (kstat_named_t),
 111             KSTAT_FLAG_VIRTUAL, GLOBAL_ZONEID);
 112         if (bfs->bfs_kstat == NULL) {
 113                 id_free(bootfs_idspace, bfs->bfs_minor);
 114                 pn_free(&dpn);
 115                 kmem_free(bfs, sizeof (bfs));
 116                 return (ENOMEM);