On Wed, 2021-02-24 at 10:30 +0800, Hillf Danton wrote:
>
> Add budget for the 80211 softint handler - it's feasible not to try to
> build the giant pyramid in a week.
>
> --- x/net/mac80211/main.c
> +++ y/net/mac80211/main.c
> @@ -224,9 +224,15 @@ static void ieee80211_tasklet_handler(un
> {
> struct ieee80211_local *local = (struct ieee80211_local *) data;
> struct sk_buff *skb;
> + int i = 0;
> +
> + while (i++ < 64) {
> + skb = skb_dequeue(&local->skb_queue);
> + if (!skb)
> + skb = skb_dequeue(&local->skb_queue_unreliable);
> + if (!skb)
> + return;
I guess that's not such a bad idea, but I do wonder how we get here,
userspace can submit packets faster than we can process?
It feels like a simulation-only case, tbh, since over the air you have
limits how much bandwidth you can get ... unless you have a very slow
CPU?
In any case, if you want anything merged you're going to have to submit
a proper patch with a real commit message and Signed-off-by, etc.
johannes
