nfsrv_dsremove
static int nfsrv_dsremove(struct vnode *, char *, struct ucred *, NFSPROC_T *);
nfsrv_dsremove(curdvp, fname,
dsrm->err = nfsrv_dsremove(dsrm->dvp, dsrm->fname, dsrm->tcred,
ret = nfsrv_dsremove(dvp[i], fname, tcred, p);
ret = nfsrv_dsremove(dvp[mirrorcnt - 1], fname, tcred, p);