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authorEric Dumazet <eric.dumazet@gmail.com>2010-10-04 06:15:44 +0000
committerDavid S. Miller <davem@davemloft.net>2010-10-05 14:54:36 -0700
commitd6bf781712a1d25cc8987036b3a48535b331eb91 (patch)
treecf83ab68ef2519576578d8336a43cc13cd375cde /net/atm/clip.c
parent110b2499370c401cdcc7c63e481084467291d556 (diff)
downloadop-kernel-dev-d6bf781712a1d25cc8987036b3a48535b331eb91.zip
op-kernel-dev-d6bf781712a1d25cc8987036b3a48535b331eb91.tar.gz
net neigh: RCU conversion of neigh hash table
David This is the first step for RCU conversion of neigh code. Next patches will convert hash_buckets[] and "struct neighbour" to RCU protected objects. Thanks [PATCH net-next] net neigh: RCU conversion of neigh hash table Instead of storing hash_buckets, hash_mask and hash_rnd in "struct neigh_table", a new structure is defined : struct neigh_hash_table { struct neighbour **hash_buckets; unsigned int hash_mask; __u32 hash_rnd; struct rcu_head rcu; }; And "struct neigh_table" has an RCU protected pointer to such a neigh_hash_table. This means the signature of (*hash)() function changed: We need to add a third parameter with the actual hash_rnd value, since this is not anymore a neigh_table field. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/atm/clip.c')
-rw-r--r--net/atm/clip.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/atm/clip.c b/net/atm/clip.c
index 95fdd11..ff956d1 100644
--- a/net/atm/clip.c
+++ b/net/atm/clip.c
@@ -310,9 +310,9 @@ static int clip_constructor(struct neighbour *neigh)
return 0;
}
-static u32 clip_hash(const void *pkey, const struct net_device *dev)
+static u32 clip_hash(const void *pkey, const struct net_device *dev, __u32 rnd)
{
- return jhash_2words(*(u32 *) pkey, dev->ifindex, clip_tbl.hash_rnd);
+ return jhash_2words(*(u32 *) pkey, dev->ifindex, rnd);
}
static struct neigh_table clip_tbl = {
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