SMB3: Log at least once if tree connect fails during reconnect
Adding an extra debug message to show if a tree connect failure during
reconnect (and made it a log once so it doesn't spam the logs).
Saw a case recently where tree connect repeatedly returned
access denied on reconnect and it wasn't as easy to spot as it
should have been.
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index e5ac474..6c2910e 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -268,8 +268,11 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
mutex_unlock(&tcon->ses->session_mutex);
cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
- if (rc)
+ if (rc) {
+ /* If sess reconnected but tcon didn't, something strange ... */
+ printk_once(KERN_WARNING "reconnect tcon failed rc = %d\n", rc);
goto out;
+ }
if (smb2_command != SMB2_INTERNAL_CMD)
queue_delayed_work(cifsiod_wq, &server->reconnect, 0);