Commit 6284e46b authored by Paulo Alcantara's avatar Paulo Alcantara Committed by Steve French
Browse files

cifs: use DFS root session instead of tcon ses 



Use DFS root session whenever possible to get new DFS referrals
otherwise we might end up with an IPC tcon (tcon->ses->tcon_ipc) that
doesn't respond to them.  It should be safe accessing
@ses->dfs_root_ses directly in cifs_inval_name_dfs_link_error() as it
has same lifetime as of @tcon.

Signed-off-by: default avatarPaulo Alcantara (SUSE) <pc@manguebit.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent f446a630

fs/cifs/misc.c

+1 −0
Original line number Diff line number Diff line
@@ -1262,6 +1262,7 @@ int cifs_inval_name_dfs_link_error(const unsigned int xid, 
		 * removing cached DFS targets that the client would eventually

		 * need during failover.

		 */

		ses = CIFS_DFS_ROOT_SES(ses);

		if (ses->server->ops->get_dfs_refer &&

		    !ses->server->ops->get_dfs_refer(xid, ses, ref_path, &refs,

						     &num_refs, cifs_sb->local_nls,