netdev - Re: [PATCH net] bna: fix skb->truesize underestimation

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Message-Id: <20141017.235658.809511246236814038.davem@davemloft.net>
Date:	Fri, 17 Oct 2014 23:56:58 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	netdev@...r.kernel.org, rasesh.mody@...gic.com
Subject: Re: [PATCH net] bna: fix skb->truesize underestimation

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 17 Oct 2014 12:45:55 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> skb->truesize is not meant to be tracking amount of used bytes
> in an skb, but amount of reserved/consumed bytes in memory.
> 
> For instance, if we use a single byte in last page fragment,
> we have to account the full size of the fragment.
> 
> skb->truesize can be very different from skb->len, that has
> a very specific safety purpose.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied.
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