> -----Original Message-----
> From: [email protected] [mailto:linux-cifs-
> [email protected]] On Behalf Of Long Li
> Sent: Wednesday, August 2, 2017 4:11 PM
> To: Steve French <[email protected]>; [email protected]; samba-
> [email protected]; [email protected]
> Cc: Long Li <[email protected]>
> Subject: [[PATCH v1] 25/37] [CIFS] SMBD: Support SMBD idle connection timer
> 
> +static int keep_alive_interval = 120;

This is the recommended value, but not the only possibility.

> @@ -1348,6 +1369,10 @@ struct cifs_rdma_info* cifs_create_rdma_session(
>         init_waitqueue_head(&info->wait_send_queue);
>         init_waitqueue_head(&info->wait_reassembly_queue);
> 
> +       INIT_DELAYED_WORK(&info->idle_timer_work, idle_connection_timer);
> +       schedule_delayed_work(&info->idle_timer_work,
> +               info->keep_alive_interval*HZ);
> +

This initialization is ok, but the timer should be rescheduled (extended) any 
time
any packet is sent. There is no need to perform keepalives on an active SMB 
Direct
connection.

Tom.

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