ipv6: optimise dst refcounting on skb init

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__ip6_make_skb() gets a cork->dst ref, hands it over to skb and shortly
after puts cork->dst. Save two atomics by stealing it without extra
referencing, ip6_cork_release() handles NULL cork->dst.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Pavel Begunkov 2022-01-27 00:36:22 +00:00 • committed by Jakub Kicinski

parent d344e55356

commit cd3c748077

1 changed files with 10 additions and 1 deletions

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net/ipv6/ip6_output.c

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