[PATCH 2/2] cifs: force new session setup and tcon for dfs

[Paulo Alcantara <pc@cjr.nz>]

Do not reuse existing sessions and tcons in DFS failover as it might
connect to different servers and shares.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
---
 fs/cifs/connect.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 3ca06bd88b6e..3956672a11ae 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -536,8 +536,11 @@ int cifs_reconnect(struct TCP_Server_Info *server, bool mark_smb_session)
 		return __cifs_reconnect(server, mark_smb_session);
 	}
 	spin_unlock(&cifs_tcp_ses_lock);
-
-	return reconnect_dfs_server(server, mark_smb_session);
+	/*
+	 * Ignore @mark_smb_session and invalidate all sessions & tcons as we might be connecting to
+	 * a different server or share during failover.
+	 */
+	return reconnect_dfs_server(server, true);
 }
 #else
 int cifs_reconnect(struct TCP_Server_Info *server, bool mark_smb_session)
-- 
2.35.1