+static int changelog_init_cb(struct llog_handle *llh, struct llog_rec_hdr *hdr,
+ void *data)
+{
+ struct mdd_device *mdd = (struct mdd_device *)data;
+ struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
+ ENTRY;
+
+ LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
+ LASSERT(rec->cr_hdr.lrh_type == CHANGELOG_REC);
+
+ CDEBUG(D_INFO,
+ "seeing record at index %d/%d/"LPU64" t=%x %.*s in log "LPX64"\n",
+ hdr->lrh_index, rec->cr_hdr.lrh_index, rec->cr_index,
+ rec->cr_type, rec->cr_namelen, rec->cr_name,
+ llh->lgh_id.lgl_oid);
+
+ mdd->mdd_cl.mc_index = rec->cr_index;
+ RETURN(LLOG_PROC_BREAK);
+}
+
+static int changelog_user_init_cb(struct llog_handle *llh,
+ struct llog_rec_hdr *hdr, void *data)
+{
+ struct mdd_device *mdd = (struct mdd_device *)data;
+ struct llog_changelog_user_rec *rec =
+ (struct llog_changelog_user_rec *)hdr;
+ ENTRY;
+
+ LASSERT(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN);
+ LASSERT(rec->cur_hdr.lrh_type == CHANGELOG_USER_REC);
+
+ CDEBUG(D_INFO, "seeing user at index %d/%d id=%d endrec="LPU64
+ " in log "LPX64"\n", hdr->lrh_index, rec->cur_hdr.lrh_index,
+ rec->cur_id, rec->cur_endrec, llh->lgh_id.lgl_oid);
+
+ spin_lock(&mdd->mdd_cl.mc_user_lock);
+ mdd->mdd_cl.mc_lastuser = rec->cur_id;
+ spin_unlock(&mdd->mdd_cl.mc_user_lock);
+
+ RETURN(LLOG_PROC_BREAK);
+}
+
+
+static int mdd_changelog_llog_init(struct mdd_device *mdd)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+ int rc;
+
+ /* Find last changelog entry number */
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt == NULL) {
+ CERROR("no changelog context\n");
+ return -EINVAL;
+ }
+ if (!ctxt->loc_handle) {
+ llog_ctxt_put(ctxt);
+ return -EINVAL;
+ }
+
+ rc = llog_cat_reverse_process(ctxt->loc_handle, changelog_init_cb, mdd);
+ llog_ctxt_put(ctxt);
+
+ if (rc < 0) {
+ CERROR("changelog init failed: %d\n", rc);
+ return rc;
+ }
+ CDEBUG(D_IOCTL, "changelog starting index="LPU64"\n",
+ mdd->mdd_cl.mc_index);
+
+ /* Find last changelog user id */
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_USER_ORIG_CTXT);
+ if (ctxt == NULL) {
+ CERROR("no changelog user context\n");
+ return -EINVAL;
+ }
+ if (!ctxt->loc_handle) {
+ llog_ctxt_put(ctxt);
+ return -EINVAL;
+ }
+
+ rc = llog_cat_reverse_process(ctxt->loc_handle, changelog_user_init_cb,
+ mdd);
+ llog_ctxt_put(ctxt);
+
+ if (rc < 0) {
+ CERROR("changelog user init failed: %d\n", rc);
+ return rc;
+ }
+
+ /* If we have registered users, assume we want changelogs on */
+ if (mdd->mdd_cl.mc_lastuser > 0)
+ rc = mdd_changelog_on(mdd, 1);
+
+ return rc;
+}
+
+static int mdd_changelog_init(const struct lu_env *env, struct mdd_device *mdd)
+{
+ int rc;
+
+ mdd->mdd_cl.mc_index = 0;
+ spin_lock_init(&mdd->mdd_cl.mc_lock);
+ cfs_waitq_init(&mdd->mdd_cl.mc_waitq);
+ mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+ mdd->mdd_cl.mc_flags = 0; /* off by default */
+ mdd->mdd_cl.mc_mask = CHANGELOG_DEFMASK;
+ spin_lock_init(&mdd->mdd_cl.mc_user_lock);
+ mdd->mdd_cl.mc_lastuser = 0;
+
+ rc = mdd_changelog_llog_init(mdd);
+ if (rc) {
+ CERROR("Changelog setup during init failed %d\n", rc);
+ mdd->mdd_cl.mc_flags |= CLM_ERR;
+ }
+
+ return rc;
+}
+
+static void mdd_changelog_fini(const struct lu_env *env, struct mdd_device *mdd)
+{
+ mdd->mdd_cl.mc_flags = 0;
+}
+
+/* Start / stop recording */
+int mdd_changelog_on(struct mdd_device *mdd, int on)
+{
+ int rc = 0;
+
+ if ((on == 1) && ((mdd->mdd_cl.mc_flags & CLM_ON) == 0)) {
+ LCONSOLE_INFO("%s: changelog on\n", mdd2obd_dev(mdd)->obd_name);
+ if (mdd->mdd_cl.mc_flags & CLM_ERR) {
+ CERROR("Changelogs cannot be enabled due to error "
+ "condition (see %s log).\n",
+ mdd2obd_dev(mdd)->obd_name);
+ rc = -ESRCH;
+ } else {
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ mdd->mdd_cl.mc_flags |= CLM_ON;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+ rc = mdd_changelog_write_header(mdd, CLM_START);
+ }
+ } else if ((on == 0) && ((mdd->mdd_cl.mc_flags & CLM_ON) == CLM_ON)) {
+ LCONSOLE_INFO("%s: changelog off\n",mdd2obd_dev(mdd)->obd_name);
+ rc = mdd_changelog_write_header(mdd, CLM_FINI);
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ mdd->mdd_cl.mc_flags &= ~CLM_ON;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+ }
+ return rc;
+}
+
+/** Add a changelog entry \a rec to the changelog llog
+ * \param mdd
+ * \param rec
+ * \param handle - currently ignored since llogs start their own transaction;
+ * this will hopefully be fixed in llog rewrite
+ * \retval 0 ok
+ */
+int mdd_changelog_llog_write(struct mdd_device *mdd,
+ struct llog_changelog_rec *rec,
+ struct thandle *handle)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+ int rc;
+
+ if ((mdd->mdd_cl.mc_mask & (1 << rec->cr_type)) == 0)
+ return 0;
+
+ rec->cr_hdr.lrh_len = llog_data_len(sizeof(*rec) + rec->cr_namelen);
+ /* llog_lvfs_write_rec sets the llog tail len */
+ rec->cr_hdr.lrh_type = CHANGELOG_REC;
+ rec->cr_time = cfs_time_current_64();
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ /* NB: I suppose it's possible llog_add adds out of order wrt cr_index,
+ but as long as the MDD transactions are ordered correctly for e.g.
+ rename conflicts, I don't think this should matter. */
+ rec->cr_index = ++mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt == NULL)
+ return -ENXIO;
+
+ /* nested journal transaction */
+ rc = llog_add(ctxt, &rec->cr_hdr, NULL, NULL, 0);
+ llog_ctxt_put(ctxt);
+
+ cfs_waitq_signal(&mdd->mdd_cl.mc_waitq);
+
+ return rc;
+}
+
+/** Remove entries with indicies up to and including \a endrec from the
+ * changelog
+ * \param mdd
+ * \param endrec
+ * \retval 0 ok
+ */
+int mdd_changelog_llog_cancel(struct mdd_device *mdd, long long endrec)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_ctxt *ctxt;
+ long long unsigned cur;
+ int rc;
+
+ ctxt = llog_get_context(obd, LLOG_CHANGELOG_ORIG_CTXT);
+ if (ctxt == NULL)
+ return -ENXIO;
+
+ spin_lock(&mdd->mdd_cl.mc_lock);
+ cur = (long long)mdd->mdd_cl.mc_index;
+ spin_unlock(&mdd->mdd_cl.mc_lock);
+ if (endrec > cur)
+ endrec = cur;
+
+ /* purge to "0" is shorthand for everything */
+ if (endrec == 0)
+ endrec = cur;
+
+ /* If purging all records, write a header entry so we don't have an
+ empty catalog and we're sure to have a valid starting index next
+ time. In case of crash, we just restart with old log so we're
+ allright. */
+ if (endrec == cur) {
+ rc = mdd_changelog_write_header(mdd, CLM_PURGE);
+ if (rc)
+ goto out;
+ }
+
+ /* Some records were purged, so reset repeat-access time (so we
+ record new mtime update records, so users can see a file has been
+ changed since the last purge) */
+ mdd->mdd_cl.mc_starttime = cfs_time_current_64();
+
+ rc = llog_cancel(ctxt, NULL, 1, (struct llog_cookie *)&endrec, 0);
+out:
+ llog_ctxt_put(ctxt);
+ return rc;
+}
+
+/** Add a CL_MARK record to the changelog
+ * \param mdd
+ * \param markerflags - CLM_*
+ * \retval 0 ok
+ */
+int mdd_changelog_write_header(struct mdd_device *mdd, int markerflags)
+{
+ struct obd_device *obd = mdd2obd_dev(mdd);
+ struct llog_changelog_rec *rec;
+ int reclen;
+ int len = strlen(obd->obd_name);
+ int rc;
+ ENTRY;
+
+ reclen = llog_data_len(sizeof(*rec) + len);
+ OBD_ALLOC(rec, reclen);
+ if (rec == NULL)
+ RETURN(-ENOMEM);
+
+ rec->cr_flags = CLF_VERSION;
+ rec->cr_type = CL_MARK;
+ rec->cr_namelen = len;
+ memcpy(rec->cr_name, obd->obd_name, rec->cr_namelen);
+ /* Status and action flags */
+ rec->cr_markerflags = mdd->mdd_cl.mc_flags | markerflags;
+
+ rc = mdd_changelog_llog_write(mdd, rec, NULL);
+
+ /* assume on or off event; reset repeat-access time */
+ mdd->mdd_cl.mc_starttime = rec->cr_time;
+
+ OBD_FREE(rec, reclen);
+ RETURN(rc);
+}
+
+/**
+ * Create ".lustre" directory.
+ */
+static int create_dot_lustre_dir(const struct lu_env *env, struct mdd_device *m)
+{
+ struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
+ struct md_object *mdo;
+ int rc;
+
+ memcpy(fid, &LU_DOT_LUSTRE_FID, sizeof(struct lu_fid));
+ mdo = llo_store_create_index(env, &m->mdd_md_dev, m->mdd_child,
+ mdd_root_dir_name, dot_lustre_name,
+ fid, &dt_directory_features);
+ /* .lustre dir may be already present */
+ if (IS_ERR(mdo) && PTR_ERR(mdo) != -EEXIST) {
+ rc = PTR_ERR(mdo);
+ CERROR("creating obj [%s] fid = "DFID" rc = %d\n",
+ dot_lustre_name, PFID(fid), rc);
+ RETURN(rc);
+ }
+
+ if (!IS_ERR(mdo))
+ lu_object_put(env, &mdo->mo_lu);
+
+ return 0;
+}
+
+static int dot_lustre_attr_get(const struct lu_env *env, struct md_object *obj,
+ struct md_attr *ma)
+{
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+
+ return mdd_attr_get_internal_locked(env, mdd_obj, ma);
+}
+
+static int dot_lustre_attr_set(const struct lu_env *env, struct md_object *obj,
+ const struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static int dot_lustre_xattr_get(const struct lu_env *env,
+ struct md_object *obj, struct lu_buf *buf,
+ const char *name)
+{
+ return 0;
+}
+
+static int dot_lustre_xattr_list(const struct lu_env *env,
+ struct md_object *obj, struct lu_buf *buf)
+{
+ return -EPERM;
+}
+
+static int dot_lustre_mdd_open(const struct lu_env *env, struct md_object *obj,
+ int flags)
+{
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+
+ mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+ mdd_obj->mod_count++;
+ mdd_write_unlock(env, mdd_obj);
+
+ return 0;
+}
+
+static int dot_lustre_path(const struct lu_env *env, struct md_object *obj,
+ char *path, int pathlen, __u64 *recno, int *linkno)
+{
+ return -ENOSYS;
+}
+
+static int dot_lustre_close(const struct lu_env *env, struct md_object *obj,
+ struct md_attr *ma)
+{
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+
+ mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+ mdd_obj->mod_count--;
+ mdd_write_unlock(env, mdd_obj);
+
+ return 0;
+}
+
+static dt_obj_version_t dot_lustre_version_get(const struct lu_env *env,
+ struct md_object *obj)
+{
+ return 0;
+}
+
+static void dot_lustre_version_set(const struct lu_env *env,
+ struct md_object *obj,
+ dt_obj_version_t version)
+{
+ return;
+}
+
+
+static struct md_object_operations mdd_dot_lustre_obj_ops = {
+ .moo_attr_get = dot_lustre_attr_get,
+ .moo_attr_set = dot_lustre_attr_set,
+ .moo_xattr_get = dot_lustre_xattr_get,
+ .moo_xattr_list = dot_lustre_xattr_list,
+ .moo_open = dot_lustre_mdd_open,
+ .moo_close = dot_lustre_close,
+ .moo_readpage = mdd_readpage,
+ .moo_version_get = dot_lustre_version_get,
+ .moo_version_set = dot_lustre_version_set,
+ .moo_path = dot_lustre_path
+};
+
+static int dot_lustre_lookup(const struct lu_env *env, struct md_object *p,
+ const struct lu_name *lname, struct lu_fid *f,
+ struct md_op_spec *spec)
+{
+ if (strcmp(lname->ln_name, mdd_obf_dir_name) == 0)
+ *f = LU_OBF_FID;
+ else
+ return -ENOENT;
+
+ return 0;
+}
+
+static int dot_lustre_create(const struct lu_env *env, struct md_object *pobj,
+ const struct lu_name *lname,
+ struct md_object *child, struct md_op_spec *spec,
+ struct md_attr* ma)
+{
+ return -EPERM;
+}
+
+static int dot_lustre_rename(const struct lu_env *env,
+ struct md_object *src_pobj,
+ struct md_object *tgt_pobj,
+ const struct lu_fid *lf,
+ const struct lu_name *lsname,
+ struct md_object *tobj,
+ const struct lu_name *ltname, struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static int dot_lustre_link(const struct lu_env *env, struct md_object *tgt_obj,
+ struct md_object *src_obj,
+ const struct lu_name *lname, struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static int dot_lustre_unlink(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *cobj, const struct lu_name *lname,
+ struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static struct md_dir_operations mdd_dot_lustre_dir_ops = {
+ .mdo_lookup = dot_lustre_lookup,
+ .mdo_create = dot_lustre_create,
+ .mdo_rename = dot_lustre_rename,
+ .mdo_link = dot_lustre_link,
+ .mdo_unlink = dot_lustre_unlink,
+};
+
+static int obf_attr_get(const struct lu_env *env, struct md_object *obj,
+ struct md_attr *ma)
+{
+ int rc = 0;
+
+ if (ma->ma_need & MA_INODE) {
+ struct mdd_device *mdd = mdo2mdd(obj);
+
+ /* "fid" is a virtual object and hence does not have any "real"
+ * attributes. So we reuse attributes of .lustre for "fid" dir */
+ ma->ma_need |= MA_INODE;
+ rc = dot_lustre_attr_get(env, &mdd->mdd_dot_lustre->mod_obj, ma);
+ if (rc)
+ return rc;
+ ma->ma_valid |= MA_INODE;
+ }
+
+ /* "fid" directory does not have any striping information. */
+ if (ma->ma_need & MA_LOV) {
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+
+ if (ma->ma_valid & MA_LOV)
+ return 0;
+
+ if (!(S_ISREG(mdd_object_type(mdd_obj)) ||
+ S_ISDIR(mdd_object_type(mdd_obj))))
+ return 0;
+
+ if (ma->ma_need & MA_LOV_DEF) {
+ rc = mdd_get_default_md(mdd_obj, ma->ma_lmm,
+ &ma->ma_lmm_size);
+ if (rc > 0) {
+ ma->ma_valid |= MA_LOV;
+ rc = 0;
+ }
+ }
+ }
+
+ return rc;
+}
+
+static int obf_attr_set(const struct lu_env *env, struct md_object *obj,
+ const struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static int obf_xattr_get(const struct lu_env *env,
+ struct md_object *obj, struct lu_buf *buf,
+ const char *name)
+{
+ return 0;
+}
+
+static int obf_mdd_open(const struct lu_env *env, struct md_object *obj,
+ int flags)
+{
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+
+ mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+ mdd_obj->mod_count++;
+ mdd_write_unlock(env, mdd_obj);
+
+ return 0;
+}
+
+static int obf_mdd_close(const struct lu_env *env, struct md_object *obj,
+ struct md_attr *ma)
+{
+ struct mdd_object *mdd_obj = md2mdd_obj(obj);
+
+ mdd_write_lock(env, mdd_obj, MOR_TGT_CHILD);
+ mdd_obj->mod_count--;
+ mdd_write_unlock(env, mdd_obj);
+
+ return 0;
+}
+
+/** Nothing to list in "fid" directory */
+static int obf_mdd_readpage(const struct lu_env *env, struct md_object *obj,
+ const struct lu_rdpg *rdpg)
+{
+ return -EPERM;
+}
+
+static int obf_path(const struct lu_env *env, struct md_object *obj,
+ char *path, int pathlen, __u64 *recno, int *linkno)
+{
+ return -ENOSYS;
+}
+
+static struct md_object_operations mdd_obf_obj_ops = {
+ .moo_attr_get = obf_attr_get,
+ .moo_attr_set = obf_attr_set,
+ .moo_xattr_get = obf_xattr_get,
+ .moo_open = obf_mdd_open,
+ .moo_close = obf_mdd_close,
+ .moo_readpage = obf_mdd_readpage,
+ .moo_path = obf_path
+};
+
+/**
+ * Lookup method for "fid" object. Only filenames with correct SEQ:OID format
+ * are valid. We also check if object with passed fid exists or not.
+ */
+static int obf_lookup(const struct lu_env *env, struct md_object *p,
+ const struct lu_name *lname, struct lu_fid *f,
+ struct md_op_spec *spec)
+{
+ char *name = (char *)lname->ln_name;
+ struct mdd_device *mdd = mdo2mdd(p);
+ struct mdd_object *child;
+ int rc = 0;
+
+ while (*name == '[')
+ name++;
+
+ sscanf(name, SFID, RFID(f));
+ if (!fid_is_sane(f)) {
+ CWARN("bad FID format [%s], should be "DFID"\n", lname->ln_name,
+ (__u64)1, 2, 0);
+ GOTO(out, rc = -EINVAL);
+ }
+
+ /* Check if object with this fid exists */
+ child = mdd_object_find(env, mdd, f);
+ if (child == NULL)
+ GOTO(out, rc = 0);
+ if (IS_ERR(child))
+ GOTO(out, rc = PTR_ERR(child));
+
+ if (mdd_object_exists(child) == 0)
+ rc = -ENOENT;
+
+ mdd_object_put(env, child);
+
+out:
+ return rc;
+}
+
+static int obf_create(const struct lu_env *env, struct md_object *pobj,
+ const struct lu_name *lname, struct md_object *child,
+ struct md_op_spec *spec, struct md_attr* ma)
+{
+ return -EPERM;
+}
+
+static int obf_rename(const struct lu_env *env,
+ struct md_object *src_pobj, struct md_object *tgt_pobj,
+ const struct lu_fid *lf, const struct lu_name *lsname,
+ struct md_object *tobj, const struct lu_name *ltname,
+ struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static int obf_link(const struct lu_env *env, struct md_object *tgt_obj,
+ struct md_object *src_obj, const struct lu_name *lname,
+ struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static int obf_unlink(const struct lu_env *env, struct md_object *pobj,
+ struct md_object *cobj, const struct lu_name *lname,
+ struct md_attr *ma)
+{
+ return -EPERM;
+}
+
+static struct md_dir_operations mdd_obf_dir_ops = {
+ .mdo_lookup = obf_lookup,
+ .mdo_create = obf_create,
+ .mdo_rename = obf_rename,
+ .mdo_link = obf_link,
+ .mdo_unlink = obf_unlink
+};
+
+/**
+ * Create special in-memory "fid" object for open-by-fid.
+ */
+static int mdd_obf_setup(const struct lu_env *env, struct mdd_device *m)
+{
+ struct mdd_object *mdd_obf;
+ struct lu_object *obf_lu_obj;
+ int rc = 0;
+
+ m->mdd_dot_lustre_objs.mdd_obf = mdd_object_find(env, m,
+ &LU_OBF_FID);
+ if (m->mdd_dot_lustre_objs.mdd_obf == NULL ||
+ IS_ERR(m->mdd_dot_lustre_objs.mdd_obf))
+ GOTO(out, rc = -ENOENT);
+
+ mdd_obf = m->mdd_dot_lustre_objs.mdd_obf;
+ mdd_obf->mod_obj.mo_dir_ops = &mdd_obf_dir_ops;
+ mdd_obf->mod_obj.mo_ops = &mdd_obf_obj_ops;
+ /* Don't allow objects to be created in "fid" dir */
+ mdd_obf->mod_flags |= IMMUTE_OBJ;
+
+ obf_lu_obj = mdd2lu_obj(mdd_obf);
+ obf_lu_obj->lo_header->loh_attr |= (LOHA_EXISTS | S_IFDIR);
+
+out:
+ return rc;
+}
+
+/** Setup ".lustre" directory object */
+static int mdd_dot_lustre_setup(const struct lu_env *env, struct mdd_device *m)
+{
+ struct dt_object *dt_dot_lustre;
+ struct lu_fid *fid = &mdd_env_info(env)->mti_fid;
+ int rc;
+
+ rc = create_dot_lustre_dir(env, m);
+ if (rc)
+ return rc;
+
+ dt_dot_lustre = dt_store_open(env, m->mdd_child, mdd_root_dir_name,
+ dot_lustre_name, fid);
+ if (IS_ERR(dt_dot_lustre)) {
+ rc = PTR_ERR(dt_dot_lustre);
+ GOTO(out, rc);
+ }
+
+ /* references are released in mdd_device_shutdown() */
+ m->mdd_dot_lustre = lu2mdd_obj(lu_object_locate(dt_dot_lustre->do_lu.lo_header,
+ &mdd_device_type));
+
+ m->mdd_dot_lustre->mod_obj.mo_dir_ops = &mdd_dot_lustre_dir_ops;
+ m->mdd_dot_lustre->mod_obj.mo_ops = &mdd_dot_lustre_obj_ops;
+
+ rc = mdd_obf_setup(env, m);
+ if (rc)
+ CERROR("Error initializing \"fid\" object - %d.\n", rc);
+
+out:
+ RETURN(rc);
+}
+