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[NET] Fix neighbour tbl->entries race

To: "David S. Miller" <davem@xxxxxxxxxxxxx>, netdev@xxxxxxxxxxx
Subject: [NET] Fix neighbour tbl->entries race
From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Tue, 2 Nov 2004 22:26:51 +1100
Sender: netdev-bounce@xxxxxxxxxxx
User-agent: Mutt/1.5.6+20040722i
Hi Dave:

This patch turns neigh_table's entries counter into an atomic_t.  This
is needed since tbl->entries is updated with no locks held.  This is
no big deal in practice since it'll be off by a few entries at most
which is way less than any of the neighbour thresholds.

Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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