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Message-ID: <CANn89iL3ODh0xf=+P0gSYN-mGwACeeCO+OwtJzK5JEtOtMdPuw@mail.gmail.com> Date: Mon, 13 Mar 2017 16:28:04 -0700 From: Eric Dumazet <edumazet@...gle.com> To: Alexei Starovoitov <alexei.starovoitov@...il.com> Cc: "David S . Miller" <davem@...emloft.net>, netdev <netdev@...r.kernel.org>, Tariq Toukan <tariqt@...lanox.com>, Saeed Mahameed <saeedm@...lanox.com>, Willem de Bruijn <willemb@...gle.com>, Alexei Starovoitov <ast@...nel.org>, Eric Dumazet <eric.dumazet@...il.com>, Alexander Duyck <alexander.duyck@...il.com> Subject: Re: [PATCH net-next] mlx4: Better use of order-0 pages in RX path On Mon, Mar 13, 2017 at 4:21 PM, Alexei Starovoitov <alexei.starovoitov@...il.com> wrote: > > is it once in the beginning only? If so then why that > 'if (!ring->page_cache.index)' check is done for every packet? You did not really read the patch, otherwise you would not ask these questions. Test it, and if you find a regression, shout loudly.
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