netdev - Re: [PATCH net-next (v2, reword)] neigh: Keep neighbour cache entries if number of them is small enough.

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Message-Id: <20130122.142557.1334303173778603774.davem@davemloft.net>
Date:	Tue, 22 Jan 2013 14:25:57 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	yoshfuji@...ux-ipv6.org
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net-next (v2, reword)] neigh: Keep neighbour cache
 entries if number of them is small enough.

From: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
Date: Wed, 23 Jan 2013 00:20:05 +0900

> Since we have removed NCE (Neighbour Cache Entry) reference from
> routing entries, the only refcnt holders of an NCE are its timer
> (if running) and its owner table, in usual cases.  As a result,
> neigh_periodic_work() purges NCEs over and over again even for
> gateways.
> 
> It does not make sense to purge entries, if number of them is
> very small, so keep them.  The minimum number of entries to keep
> is specified by gc_thresh1.
> 
> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>

Applied, thanks.
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