if (!filesystem)		return;	while (!co_list_empty(&filesystem->list_inodes)) {				co_list_entry_assign(filesystem->list_inodes.next, inode, flat_node);		free_inode(filesystem, inode);	}	co_os_free(filesystem);	cmon->filesystems[unit] = NULL;}static co_rc_t inode_get_attr(co_filesystem_t *filesystem, co_inode_t *inode, 			      struct fuse_getattr_out *attr){	char *name;	name = inode->name;	inode = inode->parent;	if (name == NULL)		name = "";	return filesystem->ops->getattr(filesystem, inode, name, &attr->attr);}static co_rc_t inode_lookup(co_filesystem_t *filesystem, co_inode_t *dir, 			    char *name, struct fuse_lookup_out *args){	co_rc_t rc = filesystem->ops->getattr(filesystem, dir, name, &args->attr);	if (CO_OK(rc)) {		co_inode_t *inode = NULL;		inode = find_inode(filesystem, dir, name);		if (!inode)			inode = alloc_inode(filesystem, dir, name);		args->ino = inode->number;	}	return rc;}static int translate_code(co_rc_t value){	switch (CO_RC_GET_CODE(value)) {	case CO_RC_NOT_FOUND:		return -ENOENT;	case CO_RC_ACCESS_DENIED:		return -EPERM;	case CO_RC_INVALID_PARAMETER:		return -EINVAL;	case 0:		return 0;	default:		return -EIO;	}	return 0;}static co_rc_t fs_mount(co_filesystem_t *filesystem, const char *pathname,			int uid, int gid, unsigned long dir_mode, 			unsigned long file_mode){		co_cofsdev_desc_t *desc;	co_rc_t rc;	desc = filesystem->desc;	filesystem->uid = uid;	filesystem->gid = gid;	filesystem->dir_mode = dir_mode;	filesystem->file_mode = file_mode;	co_memcpy(&filesystem->base_path, &desc->pathname, sizeof(co_pathname_t));	rc = co_os_fs_dir_join_unix_path(&filesystem->base_path, pathname);	return rc;}static co_rc_t fs_stat(co_filesystem_t *filesystem, struct fuse_statfs_out *statfs){	return filesystem->ops->fs_stat(filesystem, statfs);	}void co_monitor_file_system(co_monitor_t *cmon, unsigned int unit,			    enum fuse_opcode opcode, unsigned long *params){	int ino = -1;	co_filesystem_t *filesystem;	co_inode_t *inode;	int result = 0;	filesystem = cmon->filesystems[unit];	if (!filesystem) {		result = -ENODEV;		goto out;	}	switch (opcode) {	case FUSE_MOUNT:		result = fs_mount(filesystem, (char*)(&co_passage_page->params[30]),				  co_passage_page->params[5],				  co_passage_page->params[6],				  co_passage_page->params[7],				  co_passage_page->params[8]);		result = translate_code(result);		goto out;	case FUSE_STATFS:		result = fs_stat(filesystem, (struct fuse_statfs_out *)(&co_passage_page->params[5]));		result = translate_code(result);		goto out;	default:		break;	}	ino = params[0];	inode = ino_num_to_inode(ino, filesystem);	switch (opcode) {	case FUSE_SETATTR: {		result = inode_set_attr(filesystem, inode, 					co_passage_page->params[5],					(struct fuse_attr *)(&co_passage_page->params[6]));		result = translate_code(result);		break;	}	case FUSE_RENAME: {		char *str = (char *)&co_passage_page->params[30];		result = inode_rename(filesystem, inode, 				      co_passage_page->params[5],				      str,				      str + co_strlen(str) + 1);		result = translate_code(result);		break;	}	case FUSE_FORGET: {		inode_forget(filesystem, inode);		break;	}	case FUSE_MKNOD:		result = inode_mknod(filesystem, inode, 				     co_passage_page->params[5],				     co_passage_page->params[6],				     (char *)&co_passage_page->params[30],				     (int *)&co_passage_page->params[7],				     (struct fuse_attr *)(&co_passage_page->params[8]));		result = translate_code(result);		break;	case FUSE_MKDIR:		result = inode_mkdir(filesystem, inode, 				      co_passage_page->params[5],				      (char *)&co_passage_page->params[30]);		result = translate_code(result);		break;	case FUSE_UNLINK:		result = inode_unlink(filesystem, inode, 				      (char *)&co_passage_page->params[30]);		result = translate_code(result);		break;	case FUSE_RMDIR: 		result = inode_rmdir(filesystem, inode, 				     (char *)&co_passage_page->params[30]);		result = translate_code(result);		break;	case FUSE_WRITE: {		result = inode_write(cmon, filesystem, inode, 				     *((unsigned long long *)&co_passage_page->params[5]),				     co_passage_page->params[7],				     co_passage_page->params[8]);		result = translate_code(result);		break;	}	case FUSE_READ: {		result = inode_read(cmon, filesystem, inode, 				    *((unsigned long long *)&co_passage_page->params[5]),				    co_passage_page->params[7],				    co_passage_page->params[8]);		result = translate_code(result);		break;	}	case FUSE_OPEN: {		result = inode_open(filesystem, inode, co_passage_page->params[5]);		result = translate_code(result);		break;	}	case FUSE_LOOKUP: {		result = 			inode_lookup(filesystem, inode,				     (char *)&co_passage_page->params[30],				     (struct fuse_lookup_out *)&co_passage_page->params[5]);		result = translate_code(result);		break;	}	case FUSE_GETATTR: {		result = inode_get_attr(filesystem, inode,					(struct fuse_getattr_out *)&co_passage_page->params[5]);		result = translate_code(result);		break;	}	case FUSE_DIR_OPEN:		result = inode_dir_open(filesystem, inode);		result = translate_code(result);		break;	case FUSE_DIR_READ:		result = inode_dir_read(cmon, inode, 					co_passage_page->params[6],					co_passage_page->params[5], 					&co_passage_page->params[7],					co_passage_page->params[8]);		result = translate_code(result);		break;	case FUSE_DIR_RELEASE:		result = inode_dir_release(inode);		result = translate_code(result);		break;	case FUSE_GETDIR:		break;	default:		break;	}	out:	co_passage_page->params[4] = result;}void co_monitor_unregister_filesystems(co_monitor_t *cmon){	int i;	for (i=0; i < CO_MODULE_MAX_COFS; i++)		co_monitor_file_system_free(cmon, i);}/* *  Flat mode implementation. */static co_rc_t flat_mode_inode_rename(co_filesystem_t *filesystem, co_inode_t *old_inode, co_inode_t *new_inode, 			     char *oldname, char *newname){	char *old_dirname = NULL, *new_dirname = NULL;	co_rc_t rc;	rc = co_os_fs_dir_inode_to_path(filesystem, old_inode, &old_dirname, oldname);	if (CO_OK(rc)) {		rc = co_os_fs_dir_inode_to_path(filesystem, new_inode, &new_dirname, newname);		if (CO_OK(rc)) {			rc = co_os_file_rename(old_dirname, new_dirname);			co_os_free(new_dirname);		}		co_os_free(old_dirname);	}	return rc;}static co_rc_t flat_mode_getattr(co_filesystem_t *fs, co_inode_t *dir,				 char *name, struct fuse_attr *attr){	char *filename;	co_rc_t rc;	rc = co_os_fs_dir_inode_to_path(fs, dir, &filename, name);	if (!CO_OK(rc))		return rc;	rc = co_os_fs_get_attr(fs, filename, attr);	co_os_free(filename);	return rc;}static co_rc_t flat_mode_getdir(co_filesystem_t *fs, co_inode_t *dir, co_filesystem_dir_names_t *names){	char *dirname;	co_rc_t rc;	rc = co_os_fs_inode_to_path(fs, dir, &dirname, 1);	if (!CO_OK(rc))		return rc;	rc = co_os_file_getdir(dirname, names);	co_os_free(dirname);	return rc;}static co_rc_t flat_mode_inode_read_write(co_monitor_t *linuxvm, co_filesystem_t *filesystem, co_inode_t *inode, 				  unsigned long long offset, unsigned long size,				  vm_ptr_t src_buffer, bool_t read){	char *filename;	co_rc_t rc;	rc = co_os_fs_inode_to_path(filesystem, inode, &filename, 0);	if (!CO_OK(rc))		return rc;		rc = co_os_file_read_write(linuxvm, filename, offset, size, src_buffer, read);	co_os_free(filename);	return rc;}static co_rc_t flat_mode_inode_mknod(co_filesystem_t *filesystem, co_inode_t *inode, unsigned long mode, 			     unsigned long rdev, char *name, int *ino, struct fuse_attr *attr){	char *filename;	co_rc_t rc;	rc = co_os_fs_dir_inode_to_path(filesystem, inode, &filename, name);	if (!CO_OK(rc))		return rc;	rc = co_os_file_mknod(filename);	co_os_free(filename);	return rc;}static co_rc_t flat_mode_inode_set_attr(co_filesystem_t *filesystem, co_inode_t *inode,				unsigned long valid, struct fuse_attr *attr){	char *filename;	co_rc_t rc;	rc = co_os_fs_inode_to_path(filesystem, inode, &filename, 0);	if (!CO_OK(rc))		return rc;	rc = co_os_file_set_attr(filename, valid, attr);	co_os_free(filename);	return rc;} static co_rc_t flat_mode_inode_mkdir(co_filesystem_t *filesystem, co_inode_t *inode, unsigned long mode, 			     char *name){	char *dirname;	co_rc_t rc;	rc = co_os_fs_dir_inode_to_path(filesystem, inode, &dirname, name);	if (!CO_OK(rc))		return rc;	rc = co_os_file_mkdir(dirname);	co_os_free(dirname);	return rc;}static co_rc_t flat_mode_inode_unlink(co_filesystem_t *filesystem, co_inode_t *inode, char *name){	char *filename;	co_rc_t rc;	rc = co_os_fs_dir_inode_to_path(filesystem, inode, &filename, name);	if (!CO_OK(rc))		return rc;	rc = co_os_file_unlink(filename);	co_os_free(filename);	return rc;}static co_rc_t flat_mode_inode_rmdir(co_filesystem_t *filesystem, co_inode_t *inode, char *name){	char *dirname;	co_rc_t rc;	rc = co_os_fs_dir_inode_to_path(filesystem, inode, &dirname, name);	if (!CO_OK(rc))		return rc;	rc = co_os_file_rmdir(dirname);	co_os_free(dirname);	return rc;}static co_rc_t flat_mode_fs_stat(co_filesystem_t *filesystem, struct fuse_statfs_out *statfs){	return co_os_file_fs_stat(filesystem, statfs);}static struct co_filesystem_ops flat_mode = {	.inode_rename = flat_mode_inode_rename,	.getattr = flat_mode_getattr,	.getdir = flat_mode_getdir,	.inode_read_write = flat_mode_inode_read_write,	.inode_mknod = flat_mode_inode_mknod,	.inode_set_attr = flat_mode_inode_set_attr,	.inode_mkdir = flat_mode_inode_mkdir,	.inode_unlink = flat_mode_inode_unlink,	.inode_rmdir = flat_mode_inode_rmdir,	.fs_stat = flat_mode_fs_stat,};