smb/client/dfs.c

70  * release it as any new DFS referrals must go through its IPC tcon.
217 	struct cifs_tcon *tcon;
236 		else if (WARN_ON(!mnt_ctx->tcon))
242 	tcon = mnt_ctx->tcon;
243 	spin_lock(&tcon->tc_lock);
244 	if (!tcon->origin_fullpath) {
245 		tcon->origin_fullpath = origin_fullpath;
250 	spin_unlock(&tcon->tc_lock);
253 		queue_delayed_work(dfscache_wq, &tcon->dfs_cache_work,
399 	struct cifs_tcon *tcon = ses->tcon_ipc;
419 	rc = server->ops->tree_connect(xid, ses, tree, tcon,
422 	spin_lock(&tcon->tc_lock);
424 		tcon->status = TID_NEED_TCON;
426 		tcon->status = TID_GOOD;
427 		tcon->need_reconnect = false;
429 	spin_unlock(&tcon->tc_lock);
434 			     struct cifs_tcon *tcon)
436 	struct cifs_ses *ses = tcon->ses;
442 static int __tree_connect_dfs_target(const unsigned int xid, struct cifs_tcon *tcon,
447 	struct TCP_Server_Info *server = tcon->ses->server;
449 	struct cifs_ses *root_ses = CIFS_DFS_ROOT_SES(tcon->ses);
485 		tree_connect_ipc(xid, tree, cifs_sb, tcon);
489 			rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);
501 			rc = ops->tree_connect(xid, tcon->ses, tree, tcon, cifs_sb->local_nls);
527 static int tree_connect_dfs_target(const unsigned int xid, struct cifs_tcon *tcon,
533 	struct TCP_Server_Info *server = tcon->ses->server;
537 		rc = __tree_connect_dfs_target(xid, tcon, cifs_sb, tree, islink, tl);
552 int cifs_tree_connect(const unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nlsc)
555 	struct TCP_Server_Info *server = tcon->ses->server;
564 	spin_lock(&tcon->tc_lock);
566 	/* if tcon is marked for needing reconnect, update state */
567 	if (tcon->need_reconnect)
568 		tcon->status = TID_NEED_TCON;
570 	if (tcon->status == TID_GOOD) {
571 		spin_unlock(&tcon->tc_lock);
575 	if (tcon->status != TID_NEW &&
576 	    tcon->status != TID_NEED_TCON) {
577 		spin_unlock(&tcon->tc_lock);
581 	tcon->status = TID_IN_TCON;
582 	spin_unlock(&tcon->tc_lock);
590 	if (tcon->ipc) {
594 		rc = ops->tree_connect(xid, tcon->ses, tree, tcon, nlsc);
598 	sb = cifs_get_dfs_tcon_super(tcon);
603 	 * Tree connect to last share in @tcon->tree_name whether dfs super or
608 		rc = ops->tree_connect(xid, tcon->ses, tcon->tree_name, tcon,
613 	rc = tree_connect_dfs_target(xid, tcon, cifs_sb, tree, ref.server_type == DFS_TYPE_LINK,
622 		spin_lock(&tcon->tc_lock);
623 		if (tcon->status == TID_IN_TCON)
624 			tcon->status = TID_NEED_TCON;
625 		spin_unlock(&tcon->tc_lock);
627 		spin_lock(&tcon->tc_lock);
628 		if (tcon->status == TID_IN_TCON)
629 			tcon->status = TID_GOOD;
630 		tcon->need_reconnect = false;
631 		spin_unlock(&tcon->tc_lock);