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authorEric Dumazet <edumazet@google.com>2016-04-30 10:19:29 -0700
committerDavid S. Miller <davem@davemloft.net>2016-05-03 00:22:19 -0400
commit9580bf2edb402b3afaf9c5a4efb6953f993ef52e (patch)
treeead375015918eb32b6ad7cb73a00a5567b8378ed /arch/powerpc/platforms/cell/cbe_powerbutton.c
parentc0ef079ca791ef9e057ac748051425a768c9e192 (diff)
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net: relax expensive skb_unclone() in iptunnel_handle_offloads()
Locally generated TCP GSO packets having to go through a GRE/SIT/IPIP tunnel have to go through an expensive skb_unclone() Reallocating skb->head is a lot of work. Test should really check if a 'real clone' of the packet was done. TCP does not care if the original gso_type is changed while the packet travels in the stack. This adds skb_header_unclone() which is a variant of skb_clone() using skb_header_cloned() check instead of skb_cloned(). This variant can probably be used from other points. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/powerpc/platforms/cell/cbe_powerbutton.c')
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