+struct dentry *mds_name2locked_dentry(struct mds_obd *mds, struct dentry *dir,
+ struct vfsmount **mnt, char *name,
+ int namelen, int lock_mode,
+ struct lustre_handle *lockh,
+ int dir_lock_mode);
+struct dentry *mds_fid2locked_dentry(struct mds_obd *mds, struct ll_fid *fid,
+ struct vfsmount **mnt, int lock_mode,
+ struct lustre_handle *lockh);
+struct dentry *mds_fid2dentry(struct mds_obd *mds, struct ll_fid *fid,
+ struct vfsmount **mnt);
+int mds_lock_callback(struct lustre_handle *lockh, struct ldlm_lock_desc *desc,
+ void *data, int data_len, struct ptlrpc_request **req);
+int mds_reint(int offset, struct ptlrpc_request *req);
+
+/* mdc/mdc_request.c */
+extern int mdc_con2cl(struct lustre_handle *conn, struct ptlrpc_client **cl,
+ struct ptlrpc_connection **connection,
+ struct lustre_handle **rconn);
+
+int mdc_enqueue(struct lustre_handle *conn, int lock_type,
+ struct lookup_intent *it, int lock_mode, struct inode *dir,
+ struct dentry *de, struct lustre_handle *h, __u64 id,
+ char *tgt, int tgtlen, void *data, int datalen);
+int mdc_getlovinfo(struct obd_device *obd, struct lustre_handle *mdc_connh,
+ uuid_t **uuids, struct ptlrpc_request **request);
+int mdc_getstatus(struct lustre_handle *conn,
+ struct ll_fid *rootfid, __u64 *last_committed, __u64 *last_rcvd,
+ __u32 *last_xid, struct ptlrpc_request **);
+int mdc_getattr(struct lustre_handle *conn,
+ obd_id ino, int type, unsigned long valid, size_t ea_size,
+ struct ptlrpc_request **request);
+int mdc_statfs(struct lustre_handle *conn,
+ struct statfs *sfs, struct ptlrpc_request **request);
+int mdc_setattr(struct lustre_handle *conn,
+ struct inode *, struct iattr *iattr, struct ptlrpc_request **);
+int mdc_open(struct lustre_handle *conn,
+ obd_id ino, int type, int flags, struct lov_stripe_md *md, __u64 cookie, __u64 *fh, struct ptlrpc_request **request);
+int mdc_close(struct lustre_handle *conn,
+ obd_id ino, int type, __u64 fh, struct ptlrpc_request **req);
+int mdc_readpage(struct lustre_handle *conn, obd_id ino,
+ int type, __u64 offset, char *addr, struct ptlrpc_request **);
+int mdc_create(struct lustre_handle *conn,
+ struct inode *dir, const char *name, int namelen,
+ const char *tgt, int tgtlen, int mode, __u32 uid, __u32 gid,
+ __u64 time, __u64 rdev, struct lov_stripe_md *md,
+ struct ptlrpc_request **);
+int mdc_unlink(struct lustre_handle *conn,
+ struct inode *dir, struct inode *child, const char *name,
+ int namelen, struct ptlrpc_request **);
+int mdc_link(struct lustre_handle *conn,
+ struct dentry *src, struct inode *dir, const char *name,
+ int namelen, struct ptlrpc_request **);
+int mdc_rename(struct lustre_handle *conn,
+ struct inode *src, struct inode *tgt, const char *old,
+ int oldlen, const char *new, int newlen,
+ struct ptlrpc_request **);
+int mdc_create_client(char *uuid, struct ptlrpc_client *cl);
+
+extern int mds_client_add(struct mds_obd *mds, struct mds_client_data *mcd,
+ int cl_off);
+
+/* mds/mds_fs.c */
+struct mds_fs_operations {
+ void *(* fs_start)(struct inode *inode, int op);
+ int (* fs_commit)(struct inode *inode, void *handle);
+ int (* fs_setattr)(struct dentry *dentry, void *handle,
+ struct iattr *iattr);
+ int (* fs_set_md)(struct inode *inode, void *handle,
+ struct lov_stripe_md *md);
+ int (* fs_get_md)(struct inode *inode,
+ struct lov_stripe_md *md);
+ ssize_t (* fs_readpage)(struct file *file, char *buf, size_t count,
+ loff_t *offset);
+ void (* fs_delete_inode)(struct inode *inode);
+ void (* cl_delete_inode)(struct inode *inode);
+ int (* fs_journal_data)(struct file *file);
+ int (* fs_set_last_rcvd)(struct mds_obd *mds, void *handle);
+ int (* fs_statfs)(struct super_block *sb, struct statfs *sfs);
+};
+
+extern int mds_register_fs_type(struct mds_fs_operations *op, const char *name);
+extern void mds_unregister_fs_type(const char *name);
+extern int mds_fs_setup(struct mds_obd *mds, struct vfsmount *mnt);
+extern void mds_fs_cleanup(struct mds_obd *mds);
+
+static inline void *mds_fs_start(struct mds_obd *mds, struct inode *inode,
+ int op)
+{
+ return mds->mds_fsops->fs_start(inode, op);
+}