332 struct idmap {  struct
359 	struct idmap *idmap;  in nfs_idmap_new()  local
364 	idmap = kzalloc(sizeof(*idmap), GFP_KERNEL);  in nfs_idmap_new()
365 	if (idmap == NULL)  in nfs_idmap_new()
368 	idmap->idmap_dentry = rpc_mkpipe(clp->cl_rpcclient->cl_path.dentry,  in nfs_idmap_new()
369 			"idmap", idmap, &idmap_upcall_ops, 0);  in nfs_idmap_new()
370 	if (IS_ERR(idmap->idmap_dentry)) {  in nfs_idmap_new()
371 		error = PTR_ERR(idmap->idmap_dentry);  in nfs_idmap_new()
372 		kfree(idmap);  in nfs_idmap_new()
376 	mutex_init(&idmap->idmap_lock);  in nfs_idmap_new()
377 	mutex_init(&idmap->idmap_im_lock);  in nfs_idmap_new()
378 	init_waitqueue_head(&idmap->idmap_wq);  in nfs_idmap_new()
379 	idmap->idmap_user_hash.h_type = IDMAP_TYPE_USER;  in nfs_idmap_new()
380 	idmap->idmap_group_hash.h_type = IDMAP_TYPE_GROUP;  in nfs_idmap_new()
382 	clp->cl_idmap = idmap;  in nfs_idmap_new()
389 	struct idmap *idmap = clp->cl_idmap;  in nfs_idmap_delete()  local
391 	if (!idmap)  in nfs_idmap_delete()
393 	rpc_unlink(idmap->idmap_dentry);  in nfs_idmap_delete()
395 	kfree(idmap);  in nfs_idmap_delete()
468 nfs_idmap_id(struct idmap *idmap, struct idmap_hashtable *h,  in nfs_idmap_id()  argument
477 	im = &idmap->idmap_im;  in nfs_idmap_id()
493 	mutex_lock(&idmap->idmap_lock);  in nfs_idmap_id()
494 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_id()
513 	add_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_id()
514 	if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {  in nfs_idmap_id()
515 		remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_id()
520 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_id()
523 	remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_id()
524 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_id()
533 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_id()
534 	mutex_unlock(&idmap->idmap_lock);  in nfs_idmap_id()
542 nfs_idmap_name(struct idmap *idmap, struct idmap_hashtable *h,  in nfs_idmap_name()  argument
552 	im = &idmap->idmap_im;  in nfs_idmap_name()
554 	mutex_lock(&idmap->idmap_lock);  in nfs_idmap_name()
555 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_name()
573 	add_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_name()
575 	if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {  in nfs_idmap_name()
576 		remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_name()
581 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_name()
584 	remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_name()
585 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_name()
596 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_name()
597 	mutex_unlock(&idmap->idmap_lock);  in nfs_idmap_name()
626 	struct idmap *idmap = (struct idmap *)rpci->private;  in idmap_pipe_downcall()  local
627 	struct idmap_msg im_in, *im = &idmap->idmap_im;  in idmap_pipe_downcall()
639 	mutex_lock(&idmap->idmap_im_lock);  in idmap_pipe_downcall()
645 		wake_up(&idmap->idmap_wq);  in idmap_pipe_downcall()
657 			h = &idmap->idmap_user_hash;  in idmap_pipe_downcall()
660 			h = &idmap->idmap_group_hash;  in idmap_pipe_downcall()
675 			wake_up(&idmap->idmap_wq);  in idmap_pipe_downcall()
686 			wake_up(&idmap->idmap_wq);  in idmap_pipe_downcall()
699 	mutex_unlock(&idmap->idmap_im_lock);  in idmap_pipe_downcall()
707 	struct idmap *idmap = container_of(im, struct idmap, idmap_im);   in idmap_pipe_destroy_msg()  local
711 	mutex_lock(&idmap->idmap_im_lock);  in idmap_pipe_destroy_msg()
713 	wake_up(&idmap->idmap_wq);  in idmap_pipe_destroy_msg()
714 	mutex_unlock(&idmap->idmap_im_lock);  in idmap_pipe_destroy_msg()
740 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_name_to_uid()  local
744 	return nfs_idmap_id(idmap, &idmap->idmap_user_hash, name, namelen, uid);  in nfs_map_name_to_uid()
749 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_group_to_gid()  local
753 	return nfs_idmap_id(idmap, &idmap->idmap_group_hash, name, namelen, uid);  in nfs_map_group_to_gid()
758 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_uid_to_name()  local
762 		ret = nfs_idmap_name(idmap, &idmap->idmap_user_hash, uid, buf);  in nfs_map_uid_to_name()
769 	struct idmap *idmap = server->nfs_client->cl_idmap;  in nfs_map_gid_to_group()  local
773 		ret = nfs_idmap_name(idmap, &idmap->idmap_group_hash, uid, buf);  in nfs_map_gid_to_group()