86 struct idmap {  struct
113 	struct idmap *idmap;  in nfs_idmap_new()  local
118 	idmap = kzalloc(sizeof(*idmap), GFP_KERNEL);  in nfs_idmap_new()
119 	if (idmap == NULL)  in nfs_idmap_new()
122 	idmap->idmap_dentry = rpc_mkpipe(clp->cl_rpcclient->cl_dentry, "idmap",  in nfs_idmap_new()
123 					 idmap, &idmap_upcall_ops, 0);  in nfs_idmap_new()
124 	if (IS_ERR(idmap->idmap_dentry)) {  in nfs_idmap_new()
125 		error = PTR_ERR(idmap->idmap_dentry);  in nfs_idmap_new()
126 		kfree(idmap);  in nfs_idmap_new()
130 	mutex_init(&idmap->idmap_lock);  in nfs_idmap_new()
131 	mutex_init(&idmap->idmap_im_lock);  in nfs_idmap_new()
132 	init_waitqueue_head(&idmap->idmap_wq);  in nfs_idmap_new()
133 	idmap->idmap_user_hash.h_type = IDMAP_TYPE_USER;  in nfs_idmap_new()
134 	idmap->idmap_group_hash.h_type = IDMAP_TYPE_GROUP;  in nfs_idmap_new()
136 	clp->cl_idmap = idmap;  in nfs_idmap_new()
143 	struct idmap *idmap = clp->cl_idmap;  in nfs_idmap_delete()  local
145 	if (!idmap)  in nfs_idmap_delete()
147 	rpc_unlink(idmap->idmap_dentry);  in nfs_idmap_delete()
149 	kfree(idmap);  in nfs_idmap_delete()
222 nfs_idmap_id(struct idmap *idmap, struct idmap_hashtable *h,  in nfs_idmap_id()  argument
231 	im = &idmap->idmap_im;  in nfs_idmap_id()
247 	mutex_lock(&idmap->idmap_lock);  in nfs_idmap_id()
248 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_id()
267 	add_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_id()
268 	if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {  in nfs_idmap_id()
269 		remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_id()
274 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_id()
277 	remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_id()
278 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_id()
287 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_id()
288 	mutex_unlock(&idmap->idmap_lock);  in nfs_idmap_id()
296 nfs_idmap_name(struct idmap *idmap, struct idmap_hashtable *h,  in nfs_idmap_name()  argument
306 	im = &idmap->idmap_im;  in nfs_idmap_name()
308 	mutex_lock(&idmap->idmap_lock);  in nfs_idmap_name()
309 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_name()
327 	add_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_name()
329 	if (rpc_queue_upcall(idmap->idmap_dentry->d_inode, &msg) < 0) {  in nfs_idmap_name()
330 		remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_name()
335 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_name()
338 	remove_wait_queue(&idmap->idmap_wq, &wq);  in nfs_idmap_name()
339 	mutex_lock(&idmap->idmap_im_lock);  in nfs_idmap_name()
350 	mutex_unlock(&idmap->idmap_im_lock);  in nfs_idmap_name()
351 	mutex_unlock(&idmap->idmap_lock);  in nfs_idmap_name()
380 	struct idmap *idmap = (struct idmap *)rpci->private;  in idmap_pipe_downcall()  local
381 	struct idmap_msg im_in, *im = &idmap->idmap_im;  in idmap_pipe_downcall()
393 	mutex_lock(&idmap->idmap_im_lock);  in idmap_pipe_downcall()
399 		wake_up(&idmap->idmap_wq);  in idmap_pipe_downcall()
411 			h = &idmap->idmap_user_hash;  in idmap_pipe_downcall()
414 			h = &idmap->idmap_group_hash;  in idmap_pipe_downcall()
429 			wake_up(&idmap->idmap_wq);  in idmap_pipe_downcall()
440 			wake_up(&idmap->idmap_wq);  in idmap_pipe_downcall()
453 	mutex_unlock(&idmap->idmap_im_lock);  in idmap_pipe_downcall()
461 	struct idmap *idmap = container_of(im, struct idmap, idmap_im);   in idmap_pipe_destroy_msg()  local
465 	mutex_lock(&idmap->idmap_im_lock);  in idmap_pipe_destroy_msg()
467 	wake_up(&idmap->idmap_wq);  in idmap_pipe_destroy_msg()
468 	mutex_unlock(&idmap->idmap_im_lock);  in idmap_pipe_destroy_msg()
494 	struct idmap *idmap = clp->cl_idmap;  in nfs_map_name_to_uid()  local
496 	return nfs_idmap_id(idmap, &idmap->idmap_user_hash, name, namelen, uid);  in nfs_map_name_to_uid()
501 	struct idmap *idmap = clp->cl_idmap;  in nfs_map_group_to_gid()  local
503 	return nfs_idmap_id(idmap, &idmap->idmap_group_hash, name, namelen, uid);  in nfs_map_group_to_gid()
508 	struct idmap *idmap = clp->cl_idmap;  in nfs_map_uid_to_name()  local
510 	return nfs_idmap_name(idmap, &idmap->idmap_user_hash, uid, buf);  in nfs_map_uid_to_name()
514 	struct idmap *idmap = clp->cl_idmap;  in nfs_map_gid_to_group()  local
516 	return nfs_idmap_name(idmap, &idmap->idmap_group_hash, uid, buf);  in nfs_map_gid_to_group()