| commit | 09df57ca604512b29b6096afb381c839ccbd2912 | |
| author | Eric Dumazet <eric.dumazet@gmail.com> | |
| Fri, 7 Oct 2011 05:45:57 +0000 (7 05:45 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Wed, 19 Oct 2011 03:33:44 +0000 (18 23:33 -0400) | ||
| tree | d7a820fea1ef93ad5a2e8ba74926b85b451428cb | treesnapshot (tar.gz zip) |
| parent | bc416d9768aa9a2e46eb11354a9c58399dafeb01 | commitdiff |
l2tp: give proper headroom in pppol2tp_xmit()
pppol2tp_xmit() calls skb_cow_head(skb, 2) before calling
l2tp_xmit_skb()
Then l2tp_xmit_skb() calls again skb_cow_head(skb, large_headroom)
This patchs changes the first skb_cow_head() call to supply the needed
headroom to make sure at most one (expensive) pskb_expand_head() is
done.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pppol2tp_xmit() calls skb_cow_head(skb, 2) before calling
l2tp_xmit_skb()
Then l2tp_xmit_skb() calls again skb_cow_head(skb, large_headroom)
This patchs changes the first skb_cow_head() call to supply the needed
headroom to make sure at most one (expensive) pskb_expand_head() is
done.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/l2tp/l2tp_ppp.c | diffblobblamehistory |