Re: [*v2 PATCH 06/22] IPVS: netns preparation for proto_tcp

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-- 

Mvh
Hasse Schillstrom
070-699 7150

On Monday, December 13, 2010 23:18:32 Simon Horman wrote:
> Hi Hans,
> 
> I'm not all the way through yet but this series is looking good.
> Some minor nits below.
> 
> On Mon, Dec 13, 2010 at 02:38:14PM +0100, Hans Schillstrom wrote:
> > In this phase (one), all local vars will be moved to ipvs struct.
> > 
> > Remaining work, add param struct net *net to a couple of
> > functions that is common for all protos and use all
> > ip_vs_proto_data
> > 
> > Signed-off-by: Hans Schillstrom <hans.schillstrom@xxxxxxxxxxxx>
> > ---
> >  include/net/ip_vs.h                  |    7 ++-
> >  include/net/netns/ip_vs.h            |    8 +++
> >  net/netfilter/ipvs/ip_vs_ftp.c       |    9 ++-
> >  net/netfilter/ipvs/ip_vs_proto.c     |   13 ++++-
> >  net/netfilter/ipvs/ip_vs_proto_tcp.c |   99 +++++++++++++++++++--------------
> >  5 files changed, 87 insertions(+), 49 deletions(-)
> > 
> > diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
> > index 528c5e8..3765add 100644
> > --- a/include/net/ip_vs.h
> > +++ b/include/net/ip_vs.h
> > @@ -40,11 +40,12 @@ static inline struct netns_ipvs * net_ipvs(struct net* net) {
> >  	return init_net.ipvs;
> >  #endif
> >  }
> > +
> 
> This blank line change is spurious here.
> There seem to be other cases of blank lines being
> spuriously added and removed in this patch set.
> They tend to just add noise.
> 

Yes, but in this case it's a blank line that separate two blocks.

> >  /*
> >   * Get net ptr from skb in traffic cases
> >   * use skb_sknet when call is from userland (ioctl or netlink)
> >   */
> > -static inline struct net *skb_net(struct sk_buff *skb) {
> > +static inline struct net *skb_net(const struct sk_buff *skb) {
> >  #ifdef CONFIG_NET_NS
> >  #ifdef CONFIG_IP_VS_DEBUG
> >  	/*
> 
> [ snip ]
> 
> > diff --git a/include/net/netns/ip_vs.h b/include/net/netns/ip_vs.h
> > index b7d7815..512cdd0 100644
> > --- a/include/net/netns/ip_vs.h
> > +++ b/include/net/netns/ip_vs.h
> > @@ -32,6 +32,14 @@ struct netns_ipvs {
> >  	/* ip_vs_proto */
> >  	#define IP_VS_PROTO_TAB_SIZE	32	/* must be power of 2 */
> >  	struct ip_vs_proto_data *proto_data_table[IP_VS_PROTO_TAB_SIZE];
> > +	/* ip_vs_proto_tcp */
> > +#ifdef CONFIG_IP_VS_PROTO_TCP
> > +	#define	TCP_APP_TAB_BITS	4
> > +	#define	TCP_APP_TAB_SIZE	(1 << TCP_APP_TAB_BITS)
> > +	#define	TCP_APP_TAB_MASK	(TCP_APP_TAB_SIZE - 1)
> > +	struct list_head 	tcp_apps[TCP_APP_TAB_SIZE];
> 
> There is a space (not tab) after head.
> 
> > +	spinlock_t		tcp_app_lock;
> > +#endif
> >  
> >  	/* ip_vs_lblc */
> >  	int 			sysctl_lblc_expiration;
> > diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> > index 5e4da60..8986b25 100644
> > --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
> > +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
> 
> [ snip ]
> 
> > @@ -459,13 +463,13 @@ static void tcp_timeout_change(struct ip_vs_protocol *pp, int flags)
> >  	*/
> >  	tcp_state_table = (on? tcp_states_dos : tcp_states);
> >  }
> > -
> > +/* Remove dot used
> >  static int
> >  tcp_set_state_timeout(struct ip_vs_protocol *pp, char *sname, int to)
> >  {
> >  	return ip_vs_set_state_timeout(pp->timeout_table, IP_VS_TCP_S_LAST,
> >  				       tcp_state_name_table, sname, to);
> > -}
> > +} */
> 
> Can we just remove tcp_set_state_timeout ?

Sure, anyone that disagree ?

> 
> [ snip ]
> 
> > @@ -699,8 +712,10 @@ struct ip_vs_protocol ip_vs_protocol_tcp = {
> >  	.num_states =		IP_VS_TCP_S_LAST,
> >  	.dont_defrag =		0,
> >  	.appcnt =		ATOMIC_INIT(0),
> > -	.init =			ip_vs_tcp_init,
> > -	.exit =			ip_vs_tcp_exit,
> > +	.init =			NULL,
> > +	.exit =			NULL,
> > +	.init_netns =		__ip_vs_tcp_init,
> > +	.exit_netns =		__ip_vs_tcp_exit,
> >  	.register_app =		tcp_register_app,
> >  	.unregister_app =	tcp_unregister_app,
> >  	.conn_schedule =	tcp_conn_schedule,
> > @@ -714,5 +729,5 @@ struct ip_vs_protocol ip_vs_protocol_tcp = {
> >  	.app_conn_bind =	tcp_app_conn_bind,
> >  	.debug_packet =		ip_vs_tcpudp_debug_packet,
> >  	.timeout_change =	tcp_timeout_change,
> > -	.set_state_timeout =	tcp_set_state_timeout,
> > +/*	.set_state_timeout =	tcp_set_state_timeout, */
> >  };
> 
> Can this the commented-out line just be removed?

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