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net: add a truesize parameter to skb_add_rx_frag()
authorEric Dumazet <eric.dumazet@gmail.com>
Fri, 23 Mar 2012 23:59:33 +0000 (23:59 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sun, 25 Mar 2012 17:29:58 +0000 (13:29 -0400)
skb_add_rx_frag() API is misleading.

Network skbs built with this helper can use uncharged kernel memory and
eventually stress/crash machine in OOM.

Add a 'truesize' parameter and then fix drivers in followup patches.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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