From: Eric Dumazet <eric.duma...@gmail.com> Date: Sat, 30 Apr 2016 10:19:29 -0700
> From: Eric Dumazet <eduma...@google.com> > > 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 <eduma...@google.com> Nice observation, applied, thanks Eric.
