diff mbox series

cifs: fail i/o on soft mounts if sessionsetup errors out

Message ID 20200205000529.5936-1-lsahlber@redhat.com
State New
Headers show
Series cifs: fail i/o on soft mounts if sessionsetup errors out | expand

Commit Message

Ronnie Sahlberg Feb. 5, 2020, 12:05 a.m. UTC 
RHBZ: 1579050

If we have a soft mount we should fail commands for session-setup
failures (such as the password having changed/ account being deleted/ ...)
and return an error back to the application.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
---
 fs/cifs/smb2pdu.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 14f209f7376f..879e058a73f9 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -350,9 +350,14 @@  smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
 	}
 
 	rc = cifs_negotiate_protocol(0, tcon->ses);
-	if (!rc && tcon->ses->need_reconnect)
+	if (!rc && tcon->ses->need_reconnect) {
 		rc = cifs_setup_session(0, tcon->ses, nls_codepage);
-
+		if (rc && !tcon->retry) {
+			rc = -EHOSTDOWN;
+			mutex_unlock(&tcon->ses->session_mutex);
+			goto failed;
+		}
+	}
 	if (rc || !tcon->need_reconnect) {
 		mutex_unlock(&tcon->ses->session_mutex);
 		goto out;
@@ -397,6 +402,7 @@  smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
 	case SMB2_SET_INFO:
 		rc = -EAGAIN;
 	}
+failed:
 	unload_nls(nls_codepage);
 	return rc;
 }