lkml.org 
[lkml]   [2006]   [Oct]   [24]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateMon, 23 Oct 2006 23:03:50 -0700 (PDT)
SubjectRe: [PATCH 1/5] netpoll: use sk_buff_head for txq
FromDavid Miller <>
From: Stephen Hemminger <shemminger@osdl.org>
Date: Mon, 23 Oct 2006 12:02:53 -0700

> +	spin_lock_irqsave(&netpoll_txq.lock, flags);
> +	for (skb = (struct sk_buff *)netpoll_txq.next;
> +	     skb != (struct sk_buff *)&netpoll_txq; skb = next) {
> +		next = skb->next;
> +		if (skb->dev == dev) {
> +			skb_unlink(skb, &netpoll_txq);
> +			kfree_skb(skb);
> +		}
>  	}
> +	spin_unlock_irqrestore(&netpoll_txq.lock, flags);

IRQ's are disabled, I think we can't call kfree_skb() in such a
context.

That's why zap_completion_queue() has all of these funny
skb->destructor checks and such, all of this stuff potentially runs in
IRQ context.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-10-24 06:07    [W:0.356 / U:8.550 seconds]
©2003-2008 Jasper Spaans