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net: Kill hold_net release_net

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hold_net and release_net were an idea that turned out to be useless.
The code has been disabled since 2008.  Kill the code it is long past due.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman
2015-03-11 23:04:08 -05:00
committed by David S. Miller
parent 6c7005f6cb
commit efd7ef1c19
15 changed files with 14 additions and 90 deletions
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9
net/core/neighbour.c
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@@ -591,7 +591,7 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
if (!n)
goto out;
write_pnet(&n->net, hold_net(net));
write_pnet(&n->net, net);
memcpy(n->key, pkey, key_len);
n->dev = dev;
if (dev)
@@ -600,7 +600,6 @@ struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
if (tbl->pconstructor && tbl->pconstructor(n)) {
if (dev)
dev_put(dev);
release_net(net);
kfree(n);
n = NULL;
goto out;
@@ -634,7 +633,6 @@ int pneigh_delete(struct neigh_table *tbl, struct net *net, const void *pkey,
tbl->pdestructor(n);
if (n->dev)
dev_put(n->dev);
release_net(pneigh_net(n));
kfree(n);
return 0;
}
@@ -657,7 +655,6 @@ static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev)
tbl->pdestructor(n);
if (n->dev)
dev_put(n->dev);
release_net(pneigh_net(n));
kfree(n);
continue;
}
@@ -1428,11 +1425,10 @@ struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
dev_hold(dev);
p->dev = dev;
write_pnet(&p->net, hold_net(net));
write_pnet(&p->net, net);
p->sysctl_table = NULL;
if (ops->ndo_neigh_setup && ops->ndo_neigh_setup(dev, p)) {
release_net(net);
dev_put(dev);
kfree(p);
return NULL;
@@ -1472,7 +1468,6 @@ EXPORT_SYMBOL(neigh_parms_release);
static void neigh_parms_destroy(struct neigh_parms *parms)
{
release_net(neigh_parms_net(parms));
kfree(parms);
}