netdev - Re: [PATCH net-next] inet: remove dead inetpeer sequence code

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Message-Id: <20140908.164313.327482493444735038.davem@davemloft.net>
Date:	Mon, 08 Sep 2014 16:43:13 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	willemb@...gle.com
Cc:	netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH net-next] inet: remove dead inetpeer sequence code

From: Willem de Bruijn <willemb@...gle.com>
Date: Mon,  8 Sep 2014 19:08:34 -0400

> inetpeer sequence numbers are no longer incremented, so no need to
> check and flush the tree. The function that increments the sequence
> number was already dead code and removed in in "ipv4: remove unused
> function" (068a6e18). Remove the code that checks for a change, too.
> 
> Verifying that v4_seq and v6_seq are never incremented and thus that
> flush_check compares bp->flush_seq to 0 is trivial.
> 
> The second part of the change removes flush_check completely even
> though bp->flush_seq is exactly !0 once, at initialization. This
> change is correct because the time this branch is true is when
> bp->root == peer_avl_empty_rcu, in which the branch and
> inetpeer_invalidate_tree are a NOOP.
> 
> Signed-off-by: Willem de Bruijn <willemb@...gle.com>

Applied, thanks a lot.
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