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 be converted to this approach if this will be accepted :) Changes from v1: - renamed fields according to Daniel Lezcano suggestion Signed-off-by: Denis V. Lunev <[EMAIL PROTECTED]> --- include/net/net_namespace.h | 5 +++-- net/unix/af_unix.c | 4 ++-- net/unix/sysctl_net_unix.c | 12 ++++++------ 3 files changed, 11 insertions(+), 10 deletions(-) diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -8,6 +8,8 @@ #include <linux/workqueue.h> #include <linux/list.h> +#include <net/netns/unix.h> + struct proc_dir_entry; struct net_device; struct sock; @@ -46,8 +48,7 @@ struct net { struct hlist_head packet_sklist; /* unix sockets */ - int sysctl_unix_max_dgram_qlen; - struct ctl_table_header *unix_ctl; + struct netns_unix unx; }; #ifdef CONFIG_NET diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -592,7 +592,7 @@ static struct sock * unix_create1(struct net *net, struct socket *sock) &af_unix_sk_receive_queue_lock_key); sk->sk_write_space = unix_write_space; - sk->sk_max_ack_backlog = net->sysctl_unix_max_dgram_qlen; + sk->sk_max_ack_backlog = net->unx.sysctl_max_dgram_qlen; sk->sk_destruct = unix_sock_destructor; u = unix_sk(sk); u->dentry = NULL; @@ -2138,7 +2138,7 @@ static int unix_net_init(struct net *net) { int error = -ENOMEM; - net->sysctl_unix_max_dgram_qlen = 10; + net->unx.sysctl_max_dgram_qlen = 10; if (unix_sysctl_register(net)) goto out; diff --git a/net/unix/sysctl_net_unix.c b/net/unix/sysctl_net_unix.c --- a/net/unix/sysctl_net_unix.c +++ b/net/unix/sysctl_net_unix.c @@ -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); } -- 1.5.3.rc5 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html