Rik van Riel [off-list ref] wrote:

That should not be any problem, since skb's (including cowed ones)
are short lived anyway.  Allocating a little bit more memory is
fine when we have a guarantee that the memory will be freed again
shortly.

I'm not sure about the context the comment applies to, but skb's are
not necessarily short-lived.  For example, they could be queued for
a few seconds for ARP/NDISC and even longer for IPsec SA resolution.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} [off-list ref]
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