- struct mgs_obd *mgs = &obd->u.mgs;
- struct lvfs_run_ctxt saved;
- struct dentry *dentry;
- int rc;
- ENTRY;
-
- /* FIXME what's this? Do I need it? */
- rc = cfs_cleanup_group_info();
- if (rc)
- RETURN(rc);
-
- mgs->mgs_vfsmnt = mnt;
- mgs->mgs_sb = mnt->mnt_root->d_inode->i_sb;
-
- fsfilt_setup(obd, mgs->mgs_sb);
-
- OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
- obd->obd_lvfs_ctxt.pwdmnt = mnt;
- obd->obd_lvfs_ctxt.pwd = mnt->mnt_root;
- obd->obd_lvfs_ctxt.fs = get_ds();
- obd->obd_lvfs_ctxt.cb_ops = mgs_lvfs_ops;
-
- push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
-
- /* Setup the configs dir */
- dentry = simple_mkdir(cfs_fs_pwd(current->fs), mnt, MOUNT_CONFIGS_DIR, 0777, 1);
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot create %s directory: rc = %d\n",
- MOUNT_CONFIGS_DIR, rc);
- GOTO(err_pop, rc);
- }
- mgs->mgs_configs_dir = dentry;
-
- /* create directory to store nid table versions */
- dentry = simple_mkdir(cfs_fs_pwd(current->fs), mnt, MGS_NIDTBL_DIR,
- 0777, 1);
- if (IS_ERR(dentry)) {
- rc = PTR_ERR(dentry);
- CERROR("cannot create %s directory: rc = %d\n",
- MOUNT_CONFIGS_DIR, rc);
- GOTO(err_pop, rc);
- } else {
- dput(dentry);
- }
-
-err_pop:
- pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
- return rc;
+ struct lu_fid fid;
+ struct dt_object *o;
+ struct lu_fid rfid;
+ struct dt_object *root;
+ struct dt_object *nm_config_file_obj;
+ struct nm_config_file *nm_config_file;
+ int rc;
+
+ ENTRY;
+
+ OBD_SET_CTXT_MAGIC(&mgs->mgs_obd->obd_lvfs_ctxt);
+ mgs->mgs_obd->obd_lvfs_ctxt.dt = mgs->mgs_bottom;
+
+ /* XXX: fix when support for N:1 layering is implemented */
+ LASSERT(mgs->mgs_dt_dev.dd_lu_dev.ld_site);
+ mgs->mgs_dt_dev.dd_lu_dev.ld_site->ls_top_dev =
+ &mgs->mgs_dt_dev.dd_lu_dev;
+
+ /* Setup the configs dir */
+ fid.f_seq = FID_SEQ_LOCAL_NAME;
+ fid.f_oid = 1;
+ fid.f_ver = 0;
+ rc = local_oid_storage_init(env, mgs->mgs_bottom, &fid, &mgs->mgs_los);
+ if (rc)
+ GOTO(out, rc);
+
+ rc = dt_root_get(env, mgs->mgs_bottom, &rfid);
+ if (rc)
+ GOTO(out_los, rc);
+
+ root = dt_locate_at(env, mgs->mgs_bottom, &rfid,
+ &mgs->mgs_dt_dev.dd_lu_dev, NULL);
+ if (unlikely(IS_ERR(root)))
+ GOTO(out_los, rc = PTR_ERR(root));
+
+ o = local_file_find_or_create(env, mgs->mgs_los, root,
+ MOUNT_CONFIGS_DIR,
+ S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO);
+ if (IS_ERR(o))
+ GOTO(out_root, rc = PTR_ERR(o));
+
+ if (!dt_try_as_dir(env, o)) {
+ lu_object_put(env, &o->do_lu);
+ GOTO(out_root, rc = -ENOTDIR);
+ }
+
+ mgs->mgs_configs_dir = o;
+
+ nm_config_file_obj = local_index_find_or_create(env, mgs->mgs_los,
+ mgs->mgs_configs_dir,
+ LUSTRE_NODEMAP_NAME,
+ S_IFREG | S_IRUGO |
+ S_IWUSR,
+ &dt_nodemap_features);
+ if (IS_ERR(nm_config_file_obj))
+ GOTO(out_configs, rc = PTR_ERR(nm_config_file_obj));
+
+ if (nm_config_file_obj->do_index_ops == NULL) {
+ rc = nm_config_file_obj->do_ops->do_index_try(env,
+ nm_config_file_obj,
+ &dt_nodemap_features);
+ if (rc < 0) {
+ lu_object_put(env, &nm_config_file_obj->do_lu);
+ GOTO(out_configs, rc);
+ }
+ }
+ nm_config_file = nm_config_file_register(env, nm_config_file_obj);
+ if (IS_ERR(nm_config_file)) {
+ lu_object_put(env, &nm_config_file_obj->do_lu);
+ CERROR("%s: error loading nodemap config file, file must be "
+ "removed via ldiskfs: rc = %ld\n",
+ mgs->mgs_obd->obd_name, PTR_ERR(nm_config_file));
+ GOTO(out_configs, rc = PTR_ERR(nm_config_file));
+ }
+ mgs->mgs_obd->u.obt.obt_nodemap_config_file = nm_config_file;
+
+ /* create directory to store nid table versions */
+ o = local_file_find_or_create(env, mgs->mgs_los, root, MGS_NIDTBL_DIR,
+ S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO);
+ if (IS_ERR(o))
+ GOTO(out_nm, rc = PTR_ERR(o));
+
+ mgs->mgs_nidtbl_dir = o;
+
+out_nm:
+ if (rc < 0) {
+ nm_config_file_deregister(env, nm_config_file);
+ mgs->mgs_obd->u.obt.obt_nodemap_config_file = NULL;
+ }
+out_configs:
+ if (rc < 0) {
+ lu_object_put(env, &mgs->mgs_configs_dir->do_lu);
+ mgs->mgs_configs_dir = NULL;
+ }
+out_root:
+ lu_object_put(env, &root->do_lu);
+out_los:
+ if (rc) {
+ local_oid_storage_fini(env, mgs->mgs_los);
+ mgs->mgs_los = NULL;
+ }
+out:
+ mgs->mgs_dt_dev.dd_lu_dev.ld_site->ls_top_dev = NULL;
+
+ return rc;