linux-kernel - Re: [PATCH net-next 1/2] tun: reserve extra headroom only when XDP is set

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Message-Id: <20170905.142651.2109065087625525085.davem@davemloft.net>
Date:   Tue, 05 Sep 2017 14:26:51 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jasowang@...hat.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        mst@...hat.com, kubakici@...pl
Subject: Re: [PATCH net-next 1/2] tun: reserve extra headroom only when XDP
 is set

From: Jason Wang <jasowang@...hat.com>
Date: Mon,  4 Sep 2017 11:36:08 +0800

> We reserve headroom unconditionally which could cause unnecessary
> stress on socket memory accounting because of increased trusesize. Fix
> this by only reserve extra headroom when XDP is set.
> 
> Cc: Jakub Kicinski <kubakici@...pl>
> Signed-off-by: Jason Wang <jasowang@...hat.com>

Applied.