Re: [PATCH 03/12] netfilter: x_tables: align per cpu xt_counter

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On Mon, 2015-06-22 at 11:49 +0000, David Laight wrote:
> From: Pablo Neira Ayuso
> > Sent: 19 June 2015 18:18
> > From: Eric Dumazet <edumazet@xxxxxxxxxx>
> > 
> > Let's force a 16 bytes alignment on xt_counter percpu allocations,
> > so that bytes and packets sit in same cache line.
> > 
> > xt_counter being exported to user space, we cannot add __align(16) on
> > the structure itself.
> 
> You could allocate a wrapper structure that contains xt_counter
> and is itself marked __align(16).

Sure. I took one solution, out of multiple ones.


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