+/* mds/mds_lmv.c */
+int mds_lmv_postsetup(struct obd_device *obd);
+int mds_lmv_connect(struct obd_device *obd, char * lov_name);
+int mds_lmv_disconnect(struct obd_device *obd, int flags);
+int mds_try_to_split_dir(struct obd_device *, struct dentry *, struct mea **,
+ int, int);
+int mds_get_lmv_attr(struct obd_device *, struct inode *, struct mea **, int *);
+int mds_choose_mdsnum(struct obd_device *, const char *, int, int);
+int mds_lmv_postsetup(struct obd_device *);
+int mds_splitting_expected(struct obd_device *, struct dentry *);
+int mds_lock_slave_objs(struct obd_device *, struct dentry *,
+ struct lustre_handle **);
+int mds_unlink_slave_objs(struct obd_device *, struct dentry *);
+void mds_unlock_slave_objs(struct obd_device *, struct dentry *,
+ struct lustre_handle *);
+int mds_lock_and_check_slave(int, struct ptlrpc_request *, struct lustre_handle *);
+int mds_convert_mea_ea(struct obd_device *, struct inode *, struct lov_mds_md *, int);
+
+/* mds_groups.c */
+int mds_group_hash_init(void);
+void mds_group_hash_cleanup(void);
+void mds_group_hash_flush_idle(void);
+int mds_allow_setgroups(void);
+
+extern char mds_getgroups_upcall[PATH_MAX];
+extern int mds_grp_hash_entry_expire;
+extern int mds_grp_hash_acquire_expire;
+
+struct mds_grp_hash *__mds_get_global_group_hash(void);
+struct mds_grp_hash_entry * mds_get_group_entry(struct mds_obd *mds, uid_t uid);
+void mds_put_group_entry(struct mds_obd *mds, struct mds_grp_hash_entry *entry);
+int mds_handle_group_downcall(int err, uid_t uid, __u32 ngroups, gid_t *groups);
+