/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * Lustre Light Super operations * * Copyright (c) 2002, 2003 Cluster File Systems, Inc. * * This file is part of Lustre, http://www.lustre.org. * * Lustre is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * Lustre is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Lustre; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #define DEBUG_SUBSYSTEM S_LLITE #include #include #include #include #include #include #include #include #include #include "llite_internal.h" extern struct address_space_operations ll_aops; extern struct address_space_operations ll_dir_aops; static struct super_block *ll_read_super(struct super_block *sb, void *data, int silent) { int err; ENTRY; err = ll_fill_super(sb, data, silent); if (err) RETURN(NULL); RETURN(sb); } static struct super_block *lustre_read_super(struct super_block *sb, void *data, int silent) { int err; ENTRY; err = lustre_fill_super(sb, data, silent); if (err) RETURN(NULL); RETURN(sb); } /* exported operations */ struct super_operations ll_super_operations = { read_inode2: ll_read_inode2, clear_inode: ll_clear_inode, // delete_inode: ll_delete_inode, put_super: ll_put_super, statfs: ll_statfs, umount_begin: ll_umount_begin, fh_to_dentry: ll_fh_to_dentry, dentry_to_fh: ll_dentry_to_fh }; static struct file_system_type lustre_lite_fs_type = { name: "lustre_lite", fs_flags: FS_NFSEXP_FSID, read_super: ll_read_super, owner: THIS_MODULE, }; /* exported operations */ struct super_operations lustre_super_operations = { read_inode2: ll_read_inode2, clear_inode: ll_clear_inode, // delete_inode: ll_delete_inode, put_super: lustre_put_super, statfs: ll_statfs, umount_begin: ll_umount_begin, fh_to_dentry: ll_fh_to_dentry, dentry_to_fh: ll_dentry_to_fh }; static struct file_system_type lustre_fs_type = { name: "lustre", fs_flags: FS_NFSEXP_FSID, read_super: lustre_read_super, owner: THIS_MODULE, }; static int __init init_lustre_lite(void) { int rc; printk(KERN_INFO "Lustre: Lustre Lite Client File System; " "info@clusterfs.com\n"); ll_file_data_slab = kmem_cache_create("ll_file_data", sizeof(struct ll_file_data), 0, SLAB_HWCACHE_ALIGN, NULL, NULL); if (ll_file_data_slab == NULL) return -ENOMEM; proc_lustre_fs_root = proc_lustre_root ? proc_mkdir("llite", proc_lustre_root) : NULL; rc = register_filesystem(&lustre_lite_fs_type); if (rc == 0) rc = register_filesystem(&lustre_fs_type); if (rc) unregister_filesystem(&lustre_lite_fs_type); return rc; } static void __exit exit_lustre_lite(void) { unregister_filesystem(&lustre_lite_fs_type); unregister_filesystem(&lustre_fs_type); kmem_cache_destroy(ll_file_data_slab); if (proc_lustre_fs_root) { lprocfs_remove(proc_lustre_fs_root); proc_lustre_fs_root = NULL; } } MODULE_AUTHOR("Cluster File Systems, Inc. "); MODULE_DESCRIPTION("Lustre Lite Client File System"); MODULE_LICENSE("GPL"); module_init(init_lustre_lite); module_exit(exit_lustre_lite);