TMPFS_VNODE_WRECLAIM
if ((node->tn_vpstate & TMPFS_VNODE_WRECLAIM) != 0)
node->tn_vpstate &= ~TMPFS_VNODE_WRECLAIM;
node->tn_vpstate |= TMPFS_VNODE_WRECLAIM;
while ((node->tn_vpstate & TMPFS_VNODE_WRECLAIM) != 0) {