70  * release it as any new DFS referrals must go through its IPC tcon.
217 	struct cifs_tcon *tcon;  in __dfs_mount_share()  local
236 		else if (WARN_ON(!mnt_ctx->tcon))  in __dfs_mount_share()
242 	tcon = mnt_ctx->tcon;  in __dfs_mount_share()
243 	spin_lock(&tcon->tc_lock);  in __dfs_mount_share()
244 	if (!tcon->origin_fullpath) {  in __dfs_mount_share()
245 		tcon->origin_fullpath = origin_fullpath;  in __dfs_mount_share()
250 	spin_unlock(&tcon->tc_lock);  in __dfs_mount_share()
253 		queue_delayed_work(dfscache_wq, &tcon->dfs_cache_work,  in __dfs_mount_share()
352 				   struct cifs_tcon *tcon,  in tree_connect_dfs_target()  argument
357 	const struct smb_version_operations *ops = tcon->ses->server->ops;  in tree_connect_dfs_target()
358 	struct TCP_Server_Info *server = tcon->ses->server;  in tree_connect_dfs_target()
388 		rc = ops->tree_connect(xid, tcon->ses, tree,  in tree_connect_dfs_target()
389 				       tcon, tcon->ses->local_nls);  in tree_connect_dfs_target()
401 int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nlsc)  in cifs_tree_connect()  argument
404 	struct TCP_Server_Info *server = tcon->ses->server;  in cifs_tree_connect()
413 	spin_lock(&tcon->tc_lock);  in cifs_tree_connect()
415 	/* if tcon is marked for needing reconnect, update state */  in cifs_tree_connect()
416 	if (tcon->need_reconnect)  in cifs_tree_connect()
417 		tcon->status = TID_NEED_TCON;  in cifs_tree_connect()
419 	if (tcon->status == TID_GOOD) {  in cifs_tree_connect()
420 		spin_unlock(&tcon->tc_lock);  in cifs_tree_connect()
424 	if (tcon->status != TID_NEW &&  in cifs_tree_connect()
425 	    tcon->status != TID_NEED_TCON) {  in cifs_tree_connect()
426 		spin_unlock(&tcon->tc_lock);  in cifs_tree_connect()
430 	tcon->status = TID_IN_TCON;  in cifs_tree_connect()
431 	spin_unlock(&tcon->tc_lock);  in cifs_tree_connect()
439 	if (tcon->ipc) {  in cifs_tree_connect()
443 		rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);  in cifs_tree_connect()
447 	sb = cifs_get_dfs_tcon_super(tcon);  in cifs_tree_connect()
451 	/* Tree connect to last share in @tcon->tree_name if no DFS referral */  in cifs_tree_connect()
454 		rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name,  in cifs_tree_connect()
455 				       tcon, tcon->ses->local_nls);  in cifs_tree_connect()
459 	rc = tree_connect_dfs_target(xid, tcon, cifs_sb, tree, ref.server_type == DFS_TYPE_LINK,  in cifs_tree_connect()
468 		spin_lock(&tcon->tc_lock);  in cifs_tree_connect()
469 		if (tcon->status == TID_IN_TCON)  in cifs_tree_connect()
470 			tcon->status = TID_NEED_TCON;  in cifs_tree_connect()
471 		spin_unlock(&tcon->tc_lock);  in cifs_tree_connect()
473 		spin_lock(&tcon->tc_lock);  in cifs_tree_connect()
474 		if (tcon->status == TID_IN_TCON)  in cifs_tree_connect()
475 			tcon->status = TID_GOOD;  in cifs_tree_connect()
476 		tcon->need_reconnect = false;  in cifs_tree_connect()
477 		spin_unlock(&tcon->tc_lock);  in cifs_tree_connect()