Re: Q: sock output serialization

["Andi Kleen" <ak@xxxxxxx>]

On Sat, Sep 16, 2000 at 11:39:45PM +0200, Henner Eisen wrote:
> int netif_would_drop(dev)
> {
>       return (queue->input_pkt_queue.qlen > netdev_max_backlog)
>              || ( (queue->input_pkt_queue.qlen) && (queue->throttle) )
> }
> 
> would fulfil those requirements.

It would just be racy. You test, get a not drop and then another different
interrupt would deliver another packet before you can and fill the queue.
Jamal's extended netif_rx probably makes more sense, because it can be 
atomic.


-Andi