From: Steve French <stfrench@xxxxxxxxxxxxx> commit b63a9de02d64ecd5ff0749e90253f5b30ba5b9c0 upstream. Displaying the session id in /proc/fs/cifs/DebugData is needed in order to correlate Linux client information with network and server traces for many common support scenarios. Turned out to be very important for debugging. Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx> CC: Stable <stable@xxxxxxxxxxxxxxx> Reviewed-by: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/cifs/cifs_debug.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -376,6 +376,8 @@ skip_rdma: atomic_read(&server->in_send), atomic_read(&server->num_waiters)); #endif + /* dump session id helpful for use with network trace */ + seq_printf(m, " SessionId: 0x%llx", ses->Suid); if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA) seq_puts(m, " encrypted"); if (ses->sign)