netdev - [PATCH net-next 0/2] ipv6: addrlabel: avoid dirtying ip6addrlbl

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Message-Id: <20171009165225.7008-1-edumazet@google.com>
Date:   Mon,  9 Oct 2017 09:52:23 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
Subject: [PATCH net-next 0/2] ipv6: addrlabel: avoid dirtying ip6addrlbl_entry

The refcount on ip6addrlbl_entry is only used to make sure ip6addrlbl_entry
does not disappear while ip6addrlbl_get() is allocating an skb.

We can instead allocate skb first, then use RCU, so that we no longer need
to refcount these structures.

Eric Dumazet (2):
  ipv6: addrlabel: rework ip6addrlbl_get()
  ipv6: addrlabel: remove refcounting

 net/ipv6/addrlabel.c | 69 +++++++++++++---------------------------------------
 1 file changed, 17 insertions(+), 52 deletions(-)

-- 
2.14.2.920.gcf0c67979c-goog