From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <edumazet@google.com>
Subject: Re: [PATCH net-next] mlx4: Better use of order-0 pages in RX path
Date: Mon, 13 Mar 2017 16:28:04 -0700
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Cc: "David S . Miller" <davem@davemloft.net>,
        netdev <netdev@vger.kernel.org>,
        Tariq Toukan <tariqt@mellanox.com>,
        Saeed Mahameed <saeedm@mellanox.com>,
        Willem de Bruijn <willemb@google.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Eric Dumazet <eric.dumazet@gmail.com>,
        Alexander Duyck <alexander.duyck@gmail.com>
To: Alexei Starovoitov <alexei.starovoitov@gmail.com>
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On Mon, Mar 13, 2017 at 4:21 PM, Alexei Starovoitov
<alexei.starovoitov@gmail.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.