smb_vop_setattr
rc = smb_vop_setattr(snode->vp, unnamed_vp, set_attr, flags, cr);
(void) smb_vop_setattr(vp, u_vp, &attr, flags, kcr);
rc = smb_vop_setattr(vp, NULL, &set_attr, 0, kcr);
rc = smb_vop_setattr(vp, NULL, attr, 0, kcr);
int smb_vop_setattr(vnode_t *, vnode_t *, smb_attr_t *, int, cred_t *);