netdev - Re: [PATCH 4/5] virtio_net: add dedicated XDP transmit queues

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Message-ID: <20161118192317.6c283867@laptop>
Date:   Fri, 18 Nov 2016 19:23:17 -0800
From:   Jakub Kicinski <kubakici@...pl>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     John Fastabend <john.fastabend@...il.com>, tgraf@...g.ch,
        shm@...ulusnetworks.com, alexei.starovoitov@...il.com,
        daniel@...earbox.net, davem@...emloft.net,
        john.r.fastabend@...el.com, netdev@...r.kernel.org,
        bblanco@...mgrid.com, brouer@...hat.com
Subject: Re: [PATCH 4/5] virtio_net: add dedicated XDP transmit queues

On Fri, 18 Nov 2016 19:20:58 -0800, Eric Dumazet wrote:
> On Fri, 2016-11-18 at 18:57 -0800, Jakub Kicinski wrote:
> > On Fri, 18 Nov 2016 18:43:55 -0800, John Fastabend wrote:  
> > > On 16-11-18 06:10 PM, Jakub Kicinski wrote:  
>  [...]  
> > > 
> > > Seem like a valid concerns to me how about num_possible_cpus() instead.  
> > 
> > That would solve problem 1, but could cpu_possible_mask still be sparse
> > on strange setups?  Let me try to dig into this, I recall someone
> > (Eric?) was fixing similar problems some time ago.  
> 
> nr_cpu_ids is probably what you want ;)

Thank you :)