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[NETNS]: struct net content re-work (v3)

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Recently David Miller and Herbert Xu pointed out that struct net becomes
overbloated and un-maintainable. There are two solutions:
- provide a pointer to a network subsystem definition from struct net.
  This costs an additional dereferrence
- place sub-system definition into the structure itself. This will speedup
  run-time access at the cost of recompilation time

The second approach looks better for us. Other sub-systems will follow.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis V. Lunev 2007-12-11 04:19:17 -08:00 • committed by David S. Miller
parent 27147c9e6e
commit a0a53c8ba9
4 changed files with 24 additions and 11 deletions
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12
net/unix/sysctl_net_unix.c
View file

@ -18,7 +18,7 @@ static ctl_table unix_table[] = {
{
.ctl_name = NET_UNIX_MAX_DGRAM_QLEN,
.procname = "max_dgram_qlen",
.data = &init_net.sysctl_unix_max_dgram_qlen,
.data = &init_net.unx.sysctl_max_dgram_qlen,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
@ -40,9 +40,9 @@ int unix_sysctl_register(struct net *net)
if (table == NULL)
goto err_alloc;
table[0].data = &net->sysctl_unix_max_dgram_qlen;
net->unix_ctl = register_net_sysctl_table(net, unix_path, table);
if (net->unix_ctl == NULL)
table[0].data = &net->unx.sysctl_max_dgram_qlen;
net->unx.ctl = register_net_sysctl_table(net, unix_path, table);
if (net->unx.ctl == NULL)
goto err_reg;
return 0;
@ -57,8 +57,8 @@ void unix_sysctl_unregister(struct net *net)
{
struct ctl_table *table;
table = net->unix_ctl->ctl_table_arg;
unregister_sysctl_table(net->unix_ctl);
table = net->unx.ctl->ctl_table_arg;
unregister_sysctl_table(net->unx.ctl);
kfree(table);
}