From: Eric Dumazet <edumazet@google.com>
Date: Fri, 17 Oct 2014 19:45:55 +0000 (-0700)
Subject: bna: fix skb->truesize underestimation
X-Git-Tag: fixes-against-v3.18-rc2~61^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f2d9da1a8375cbe53df5b415d059429013a3a79f;p=pandora-kernel.git

bna: fix skb->truesize underestimation

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@google.com>
Cc: Rasesh Mody <rasesh.mody@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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