Re: [2.6.16 PATCH] Filessytem Events Reporter V2

[Evgeniy Polyakov]

On Fri, Apr 07, 2006 at 06:03:04PM +0800, Yi Yang (yang.y.yi@xxxxxxxxx) wrote:
> >>Can you explain why there is such a big difference between 
> >>netlink_unicast and netlink_broadcast?
> >>    
> >
> >Netlink broadcast clones skbs, while unicasting requires the whole new
> >one.
> >  
> No, I also use clone to send skb, so they should have the same overhead.

I missed that.
After rereading fsevent_send_to_process() I do not see how original skb
is freed though.

> >>>Btw, you need some rebalancing of the per-cpu queues, probably in
> >>>keventd, since CPUs can go offline and your messages will stuck foreve
> >>>there.
> >>> 
> >>>      
> >>Does keventd not do it? if so, keventd should be modified.
> >>    
> >
> >How does keventd know about your own structures?
> >You have an per-cpu object, but your keventd function gets object 
> >from running cpu, not from any other cpus.

-- 
	Evgeniy Polyakov
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