From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next] inetpeer: remove AVL implementation in favor
 of RB tree
Date: Mon, 17 Jul 2017 08:59:15 -0700 (PDT)
Message-ID: <20170717.085915.556973296335189682.davem@davemloft.net>
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Cc: pablo@netfilter.org, fw@strlen.de, netfilter-devel@vger.kernel.org,
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 17 Jul 2017 02:56:10 -0700

> From: Eric Dumazet <edumazet@google.com>
> 
> As discussed in Faro during Netfilter Workshop 2017, RB trees can be
> used with RCU, using a seqlock.
> 
> Note that net/rxrpc/conn_service.c is already using this.
> 
> This patch converts inetpeer from AVL tree to RB tree, since it allows
> to remove private AVL implementation in favor of shared RB code.
> 
> $ size net/ipv4/inetpeer.before net/ipv4/inetpeer.after
>    text    data     bss     dec     hex filename
>    3195      40     128    3363     d23 net/ipv4/inetpeer.before
>    1562      24       0    1586     632 net/ipv4/inetpeer.after
> 
> The same technique can be used to speed up
> net/netfilter/nft_set_rbtree.c (removing rwlock contention in fast path)
> 
> Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied, thanks for doing this Eric.