This patch makes the anycast and ip6_flowlabel per namespace.

-- 
_______________________________________________
Containers mailing list
Containers@lists.linux-foundation.org
https://lists.linux-foundation.org/mailman/listinfo/containers

Make /proc/net/ip6_flowlabel show only flow labels belonging to the
current network namespace.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
---
 net/ipv6/ip6_flowlabel.c |   39 +++++++++++++++++++++++----------------
 1 file changed, 23 insertions(+), 16 deletions(-)

Index: net-2.6.26/net/ipv6/ip6_flowlabel.c
===================================================================
--- net-2.6.26.orig/net/ipv6/ip6_flowlabel.c
+++ net-2.6.26/net/ipv6/ip6_flowlabel.c
@@ -611,6 +611,7 @@ done:
 #ifdef CONFIG_PROC_FS
 
 struct ip6fl_iter_state {
+	struct seq_net_private p;
 	int bucket;
 };
 
@@ -620,12 +621,15 @@ static struct ip6_flowlabel *ip6fl_get_f
 {
 	struct ip6_flowlabel *fl = NULL;
 	struct ip6fl_iter_state *state = ip6fl_seq_private(seq);
+	struct net *net = seq_file_net(seq);
 
 	for (state->bucket = 0; state->bucket <= FL_HASH_MASK; ++state->bucket) {
-		if (fl_ht[state->bucket]) {
-			fl = fl_ht[state->bucket];
+		fl = fl_ht[state->bucket];
+
+		while (fl && fl->fl_net != net)
+			fl = fl->next;
+		if (fl)
 			break;
-		}
 	}
 	return fl;
 }
@@ -633,12 +637,18 @@ static struct ip6_flowlabel *ip6fl_get_f
 static struct ip6_flowlabel *ip6fl_get_next(struct seq_file *seq, struct ip6_flowlabel *fl)
 {
 	struct ip6fl_iter_state *state = ip6fl_seq_private(seq);
+	struct net *net = seq_file_net(seq);
 
 	fl = fl->next;
+try_again:
+	while (fl && fl->fl_net != net)
+		fl = fl->next;
+
 	while (!fl) {
-		if (++state->bucket <= FL_HASH_MASK)
+		if (++state->bucket <= FL_HASH_MASK) {
 			fl = fl_ht[state->bucket];
-		else
+			goto try_again;
+		} else
 			break;
 	}
 	return fl;
@@ -708,8 +718,8 @@ static const struct seq_operations ip6fl
 
 static int ip6fl_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open_private(file, &ip6fl_seq_ops,
-			sizeof(struct ip6fl_iter_state));
+	return seq_open_net(inode, file, &ip6fl_seq_ops,
+			    sizeof(struct ip6fl_iter_state));
 }
 
 static const struct file_operations ip6fl_seq_fops = {
@@ -717,12 +727,13 @@ static const struct file_operations ip6f
 	.open		=	ip6fl_seq_open,
 	.read		=	seq_read,
 	.llseek		=	seq_lseek,
-	.release	=	seq_release_private,
+	.release	=	seq_release_net,
 };
 
 static int ip6_flowlabel_proc_init(struct net *net)
 {
-	if (!proc_net_fops_create(net, "ip6_flowlabel", S_IRUGO, &ip6fl_seq_fops))
+	if (!proc_net_fops_create(net, "ip6_flowlabel",
+				  S_IRUGO, &ip6fl_seq_fops))
 		return -ENOMEM;
 	return 0;
 }
@@ -745,25 +756,21 @@ static inline void ip6_flowlabel_proc_fi
 static inline void ip6_flowlabel_net_exit(struct net *net)
 {
 	ip6_fl_purge(net);
+	ip6_flowlabel_proc_fini(net);
 }
 
 static struct pernet_operations ip6_flowlabel_net_ops = {
+	.init = ip6_flowlabel_proc_init,
 	.exit = ip6_flowlabel_net_exit,
 };
 
 int ip6_flowlabel_init(void)
 {
-	int err;
-
-	err = register_pernet_subsys(&ip6_flowlabel_net_ops);
-	if (err)
-		return err;
-	return ip6_flowlabel_proc_init(&init_net);
+	return register_pernet_subsys(&ip6_flowlabel_net_ops);
 }
 
 void ip6_flowlabel_cleanup(void)
 {
 	del_timer(&ip6_fl_gc_timer);
 	unregister_pernet_subsys(&ip6_flowlabel_net_ops);
-	ip6_flowlabel_proc_fini(&init_net);
 }

-- 
_______________________________________________
Containers mailing list
Containers@lists.linux-foundation.org
https://lists.linux-foundation.org/mailman/listinfo/containers

Make use of the network namespace information to have this protocol to
handle several network namespace.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
---
 include/net/addrconf.h |    3 ++-
 include/net/ipv6.h     |   17 ++++++-----------
 net/ipv6/af_inet6.c    |   12 ++++++------
 net/ipv6/anycast.c     |   38 ++++++++++++++++++++++----------------
 net/ipv6/ndisc.c       |    2 +-
 5 files changed, 37 insertions(+), 35 deletions(-)

Index: net-2.6.26/net/ipv6/anycast.c
===================================================================
--- net-2.6.26.orig/net/ipv6/anycast.c
+++ net-2.6.26/net/ipv6/anycast.c
@@ -82,6 +82,7 @@ int ipv6_sock_ac_join(struct sock *sk, i
 	struct net_device *dev = NULL;
 	struct inet6_dev *idev;
 	struct ipv6_ac_socklist *pac;
+	struct net *net = sock_net(sk);
 	int	ishost = !ipv6_devconf.forwarding;
 	int	err = 0;
 
@@ -89,7 +90,7 @@ int ipv6_sock_ac_join(struct sock *sk, i
 		return -EPERM;
 	if (ipv6_addr_is_multicast(addr))
 		return -EINVAL;
-	if (ipv6_chk_addr(&init_net, addr, NULL, 0))
+	if (ipv6_chk_addr(net, addr, NULL, 0))
 		return -EINVAL;
 
 	pac = sock_kmalloc(sk, sizeof(struct ipv6_ac_socklist), GFP_KERNEL);
@@ -101,7 +102,7 @@ int ipv6_sock_ac_join(struct sock *sk, i
 	if (ifindex == 0) {
 		struct rt6_info *rt;
 
-		rt = rt6_lookup(&init_net, addr, NULL, 0, 0);
+		rt = rt6_lookup(net, addr, NULL, 0, 0);
 		if (rt) {
 			dev = rt->rt6i_dev;
 			dev_hold(dev);
@@ -112,10 +113,10 @@ int ipv6_sock_ac_join(struct sock *sk, i
 		} else {
 			/* router, no matching interface: just pick one */
 
-			dev = dev_get_by_flags(&init_net, IFF_UP, IFF_UP|IFF_LOOPBACK);
+			dev = dev_get_by_flags(net, IFF_UP, IFF_UP|IFF_LOOPBACK);
 		}
 	} else
-		dev = dev_get_by_index(&init_net, ifindex);
+		dev = dev_get_by_index(net, ifindex);
 
 	if (dev == NULL) {
 		err = -ENODEV;
@@ -176,6 +177,7 @@ int ipv6_sock_ac_drop(struct sock *sk, i
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct net_device *dev;
 	struct ipv6_ac_socklist *pac, *prev_pac;
+	struct net *net = sock_net(sk);
 
 	write_lock_bh(&ipv6_sk_ac_lock);
 	prev_pac = NULL;
@@ -196,7 +198,7 @@ int ipv6_sock_ac_drop(struct sock *sk, i
 
 	write_unlock_bh(&ipv6_sk_ac_lock);
 
-	dev = dev_get_by_index(&init_net, pac->acl_ifindex);
+	dev = dev_get_by_index(net, pac->acl_ifindex);
 	if (dev) {
 		ipv6_dev_ac_dec(dev, &pac->acl_addr);
 		dev_put(dev);
@@ -210,6 +212,7 @@ void ipv6_sock_ac_close(struct sock *sk)
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct net_device *dev = NULL;
 	struct ipv6_ac_socklist *pac;
+	struct net *net = sock_net(sk);
 	int	prev_index;
 
 	write_lock_bh(&ipv6_sk_ac_lock);
@@ -224,7 +227,7 @@ void ipv6_sock_ac_close(struct sock *sk)
 		if (pac->acl_ifindex != prev_index) {
 			if (dev)
 				dev_put(dev);
-			dev = dev_get_by_index(&init_net, pac->acl_ifindex);
+			dev = dev_get_by_index(net, pac->acl_ifindex);
 			prev_index = pac->acl_ifindex;
 		}
 		if (dev)
@@ -422,14 +425,15 @@ static int ipv6_chk_acast_dev(struct net
 /*
  *	check if given interface (or any, if dev==0) has this anycast address
  */
-int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr)
+int ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
+			struct in6_addr *addr)
 {
 	int found = 0;
 
 	if (dev)
 		return ipv6_chk_acast_dev(dev, addr);
 	read_lock(&dev_base_lock);
-	for_each_netdev(&init_net, dev)
+	for_each_netdev(net, dev)
 		if (ipv6_chk_acast_dev(dev, addr)) {
 			found = 1;
 			break;
@@ -441,6 +445,7 @@ int ipv6_chk_acast_addr(struct net_devic
 
 #ifdef CONFIG_PROC_FS
 struct ac6_iter_state {
+	struct seq_net_private p;
 	struct net_device *dev;
 	struct inet6_dev *idev;
 };
@@ -451,9 +456,10 @@ static inline struct ifacaddr6 *ac6_get_
 {
 	struct ifacaddr6 *im = NULL;
 	struct ac6_iter_state *state = ac6_seq_private(seq);
+	struct net *net = seq_file_net(seq);
 
 	state->idev = NULL;
-	for_each_netdev(&init_net, state->dev) {
+	for_each_netdev(net, state->dev) {
 		struct inet6_dev *idev;
 		idev = in6_dev_get(state->dev);
 		if (!idev)
@@ -551,8 +557,8 @@ static const struct seq_operations ac6_s
 
 static int ac6_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open_private(file, &ac6_seq_ops,
-			sizeof(struct ac6_iter_state));
+	return seq_open_net(inode, file, &ac6_seq_ops,
+			    sizeof(struct ac6_iter_state));
 }
 
 static const struct file_operations ac6_seq_fops = {
@@ -560,20 +566,20 @@ static const struct file_operations ac6_
 	.open		=	ac6_seq_open,
 	.read		=	seq_read,
 	.llseek		=	seq_lseek,
-	.release	=	seq_release_private,
+	.release	=	seq_release_net,
 };
 
-int __init ac6_proc_init(void)
+int ac6_proc_init(struct net *net)
 {
-	if (!proc_net_fops_create(&init_net, "anycast6", S_IRUGO, &ac6_seq_fops))
+	if (!proc_net_fops_create(net, "anycast6", S_IRUGO, &ac6_seq_fops))
 		return -ENOMEM;
 
 	return 0;
 }
 
-void ac6_proc_exit(void)
+void ac6_proc_exit(struct net *net)
 {
-	proc_net_remove(&init_net, "anycast6");
+	proc_net_remove(net, "anycast6");
 }
 #endif
 
Index: net-2.6.26/include/net/ipv6.h
===================================================================
--- net-2.6.26.orig/include/net/ipv6.h
+++ net-2.6.26/include/net/ipv6.h
@@ -591,8 +591,8 @@ extern int ip6_mc_msfget(struct sock *sk
 			 int __user *optlen);
 
 #ifdef CONFIG_PROC_FS
-extern int  ac6_proc_init(void);
-extern void ac6_proc_exit(void);
+extern int  ac6_proc_init(struct net *net);
+extern void ac6_proc_exit(struct net *net);
 extern int  raw6_proc_init(void);
 extern void raw6_proc_exit(void);
 extern int  tcp6_proc_init(struct net *net);
@@ -607,15 +607,10 @@ extern int snmp6_register_dev(struct ine
 extern int snmp6_unregister_dev(struct inet6_dev *idev);
 
 #else
-static inline int snmp6_register_dev(struct inet6_dev *idev)
-{
-	return 0;
-}
-
-static inline int snmp6_unregister_dev(struct inet6_dev *idev)
-{
-	return 0;
-}
+static inline int ac6_proc_init(struct net *net) { return 0; }
+static inline void ac6_proc_exit(struct net *net) { }
+static inline int snmp6_register_dev(struct inet6_dev *idev) { return 0; }
+static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; }
 #endif
 
 #ifdef CONFIG_SYSCTL
Index: net-2.6.26/net/ipv6/af_inet6.c
===================================================================
--- net-2.6.26.orig/net/ipv6/af_inet6.c
+++ net-2.6.26/net/ipv6/af_inet6.c
@@ -862,11 +862,16 @@ static int inet6_net_init(struct net *ne
 	err = tcp6_proc_init(net);
 	if (err)
 		goto proc_tcp6_fail;
+	err = ac6_proc_init(net);
+	if (err)
+		goto proc_ac6_fail;
 out:
 #endif
 	return err;
 
 #ifdef CONFIG_PROC_FS
+proc_ac6_fail:
+	tcp6_proc_exit(net);
 proc_tcp6_fail:
 	udp6_proc_exit(net);
 	goto out;
@@ -878,6 +883,7 @@ static void inet6_net_exit(struct net *n
 #ifdef CONFIG_PROC_FS
 	udp6_proc_exit(net);
 	tcp6_proc_exit(net);
+	ac6_proc_exit(net);
 #endif
 }
 
@@ -965,9 +971,6 @@ static int __init inet6_init(void)
 		goto proc_udplite6_fail;
 	if (ipv6_misc_proc_init())
 		goto proc_misc6_fail;
-
-	if (ac6_proc_init())
-		goto proc_anycast6_fail;
 	if (if6_proc_init())
 		goto proc_if6_fail;
 #endif
@@ -1039,8 +1042,6 @@ ip6_route_fail:
 #ifdef CONFIG_PROC_FS
 	if6_proc_exit();
 proc_if6_fail:
-	ac6_proc_exit();
-proc_anycast6_fail:
 	ipv6_misc_proc_exit();
 proc_misc6_fail:
 	udplite6_proc_exit();
@@ -1101,7 +1102,6 @@ static void __exit inet6_exit(void)
 
 	/* Cleanup code parts. */
 	if6_proc_exit();
-	ac6_proc_exit();
 	ipv6_misc_proc_exit();
 	udplite6_proc_exit();
 	raw6_proc_exit();
Index: net-2.6.26/include/net/addrconf.h
===================================================================
--- net-2.6.26.orig/include/net/addrconf.h
+++ net-2.6.26/include/net/addrconf.h
@@ -134,7 +134,8 @@ extern int inet6_ac_check(struct sock *s
 
 extern int ipv6_dev_ac_inc(struct net_device *dev, struct in6_addr *addr);
 extern int __ipv6_dev_ac_dec(struct inet6_dev *idev, struct in6_addr *addr);
-extern int ipv6_chk_acast_addr(struct net_device *dev, struct in6_addr *addr);
+extern int ipv6_chk_acast_addr(struct net *net, struct net_device *dev,
+			       struct in6_addr *addr);
 
 
 /* Device notifier */
Index: net-2.6.26/net/ipv6/ndisc.c
===================================================================
--- net-2.6.26.orig/net/ipv6/ndisc.c
+++ net-2.6.26/net/ipv6/ndisc.c
@@ -773,7 +773,7 @@ static void ndisc_recv_ns(struct sk_buff
 			return;
 		}
 
-		if (ipv6_chk_acast_addr(dev, &msg->target) ||
+		if (ipv6_chk_acast_addr(dev_net(dev), dev, &msg->target) ||
 		    (idev->cnf.forwarding &&
 		     (ipv6_devconf.proxy_ndp || idev->cnf.proxy_ndp) &&
 		     (pneigh = pneigh_lookup(&nd_tbl, dev_net(dev),

-- 
_______________________________________________
Containers mailing list
Containers@lists.linux-foundation.org
https://lists.linux-foundation.org/mailman/listinfo/containers

This patch introduces a new member, fl_net, in struct ip6_flowlabel.
This allows to create labels with the same value in different namespaces.

Signed-off-by: Benjamin Thery <benjamin.thery@bull.net>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
---
 include/net/ipv6.h       |    1 
 net/ipv6/ip6_flowlabel.c |   72 ++++++++++++++++++++++++++++++++++++-----------
 2 files changed, 57 insertions(+), 16 deletions(-)

Index: net-2.6.26/include/net/ipv6.h
===================================================================
--- net-2.6.26.orig/include/net/ipv6.h
+++ net-2.6.26/include/net/ipv6.h
@@ -202,6 +202,7 @@ struct ip6_flowlabel
 	u32			owner;
 	unsigned long		lastuse;
 	unsigned long		expires;
+	struct net		*fl_net;
 };
 
 #define IPV6_FLOWINFO_MASK	__constant_htonl(0x0FFFFFFF)
Index: net-2.6.26/net/ipv6/ip6_flowlabel.c
===================================================================
--- net-2.6.26.orig/net/ipv6/ip6_flowlabel.c
+++ net-2.6.26/net/ipv6/ip6_flowlabel.c
@@ -62,23 +62,23 @@ static DEFINE_RWLOCK(ip6_fl_lock);
 static DEFINE_RWLOCK(ip6_sk_fl_lock);
 
 
-static __inline__ struct ip6_flowlabel * __fl_lookup(__be32 label)
+static inline struct ip6_flowlabel *__fl_lookup(struct net *net, __be32 label)
 {
 	struct ip6_flowlabel *fl;
 
 	for (fl=fl_ht[FL_HASH(label)]; fl; fl = fl->next) {
-		if (fl->label == label)
+		if (fl->label == label && fl->fl_net == net)
 			return fl;
 	}
 	return NULL;
 }
 
-static struct ip6_flowlabel * fl_lookup(__be32 label)
+static struct ip6_flowlabel *fl_lookup(struct net *net, __be32 label)
 {
 	struct ip6_flowlabel *fl;
 
 	read_lock_bh(&ip6_fl_lock);
-	fl = __fl_lookup(label);
+	fl = __fl_lookup(net, label);
 	if (fl)
 		atomic_inc(&fl->users);
 	read_unlock_bh(&ip6_fl_lock);
@@ -88,8 +88,10 @@ static struct ip6_flowlabel * fl_lookup(
 
 static void fl_free(struct ip6_flowlabel *fl)
 {
-	if (fl)
+	if (fl) {
+		release_net(fl->fl_net);
 		kfree(fl->opt);
+	}
 	kfree(fl);
 }
 
@@ -112,7 +114,6 @@ static void fl_release(struct ip6_flowla
 		    time_after(ip6_fl_gc_timer.expires, ttd))
 			mod_timer(&ip6_fl_gc_timer, ttd);
 	}
-
 	write_unlock_bh(&ip6_fl_lock);
 }
 
@@ -148,13 +149,34 @@ static void ip6_fl_gc(unsigned long dumm
 	if (!sched && atomic_read(&fl_size))
 		sched = now + FL_MAX_LINGER;
 	if (sched) {
-		ip6_fl_gc_timer.expires = sched;
-		add_timer(&ip6_fl_gc_timer);
+		mod_timer(&ip6_fl_gc_timer, sched);
 	}
 	write_unlock(&ip6_fl_lock);
 }
 
-static struct ip6_flowlabel *fl_intern(struct ip6_flowlabel *fl, __be32 label)
+static void ip6_fl_purge(struct net *net)
+{
+	int i;
+
+	write_lock(&ip6_fl_lock);
+	for (i = 0; i <= FL_HASH_MASK; i++) {
+		struct ip6_flowlabel *fl, **flp;
+		flp = &fl_ht[i];
+		while ((fl = *flp) != NULL) {
+			if (fl->fl_net == net && atomic_read(&fl->users) == 0) {
+				*flp = fl->next;
+				fl_free(fl);
+				atomic_dec(&fl_size);
+				continue;
+			}
+			flp = &fl->next;
+		}
+	}
+	write_unlock(&ip6_fl_lock);
+}
+
+static struct ip6_flowlabel *fl_intern(struct net *net,
+				       struct ip6_flowlabel *fl, __be32 label)
 {
 	struct ip6_flowlabel *lfl;
 
@@ -165,7 +187,7 @@ static struct ip6_flowlabel *fl_intern(s
 		for (;;) {
 			fl->label = htonl(net_random())&IPV6_FLOWLABEL_MASK;
 			if (fl->label) {
-				lfl = __fl_lookup(fl->label);
+				lfl = __fl_lookup(net, fl->label);
 				if (lfl == NULL)
 					break;
 			}
@@ -179,7 +201,7 @@ static struct ip6_flowlabel *fl_intern(s
 		 * done in ipv6_flowlabel_opt - sock is locked, so new entry
 		 * with the same label can only appear on another sock
 		 */
-		lfl = __fl_lookup(fl->label);
+		lfl = __fl_lookup(net, fl->label);
 		if (lfl != NULL) {
 			atomic_inc(&lfl->users);
 			write_unlock_bh(&ip6_fl_lock);
@@ -298,7 +320,8 @@ static int fl6_renew(struct ip6_flowlabe
 }
 
 static struct ip6_flowlabel *
-fl_create(struct in6_flowlabel_req *freq, char __user *optval, int optlen, int *err_p)
+fl_create(struct net *net, struct in6_flowlabel_req *freq, char __user *optval,
+	  int optlen, int *err_p)
 {
 	struct ip6_flowlabel *fl;
 	int olen;
@@ -343,6 +366,7 @@ fl_create(struct in6_flowlabel_req *freq
 		}
 	}
 
+	fl->fl_net = hold_net(net);
 	fl->expires = jiffies;
 	err = fl6_renew(fl, freq->flr_linger, freq->flr_expires);
 	if (err)
@@ -441,6 +465,7 @@ static inline void fl_link(struct ipv6_p
 int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
 {
 	int err;
+	struct net *net = sock_net(sk);
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct in6_flowlabel_req freq;
 	struct ipv6_fl_socklist *sfl1=NULL;
@@ -483,7 +508,7 @@ int ipv6_flowlabel_opt(struct sock *sk, 
 		read_unlock_bh(&ip6_sk_fl_lock);
 
 		if (freq.flr_share == IPV6_FL_S_NONE && capable(CAP_NET_ADMIN)) {
-			fl = fl_lookup(freq.flr_label);
+			fl = fl_lookup(net, freq.flr_label);
 			if (fl) {
 				err = fl6_renew(fl, freq.flr_linger, freq.flr_expires);
 				fl_release(fl);
@@ -496,7 +521,7 @@ int ipv6_flowlabel_opt(struct sock *sk, 
 		if (freq.flr_label & ~IPV6_FLOWLABEL_MASK)
 			return -EINVAL;
 
-		fl = fl_create(&freq, optval, optlen, &err);
+		fl = fl_create(net, &freq, optval, optlen, &err);
 		if (fl == NULL)
 			return err;
 		sfl1 = kmalloc(sizeof(*sfl1), GFP_KERNEL);
@@ -518,7 +543,7 @@ int ipv6_flowlabel_opt(struct sock *sk, 
 			read_unlock_bh(&ip6_sk_fl_lock);
 
 			if (fl1 == NULL)
-				fl1 = fl_lookup(freq.flr_label);
+				fl1 = fl_lookup(net, freq.flr_label);
 			if (fl1) {
 recheck:
 				err = -EEXIST;
@@ -559,7 +584,7 @@ release:
 		if (sfl1 == NULL || (err = mem_check(sk)) != 0)
 			goto done;
 
-		fl1 = fl_intern(fl, freq.flr_label);
+		fl1 = fl_intern(net, fl, freq.flr_label);
 		if (fl1 != NULL)
 			goto recheck;
 
@@ -717,13 +742,28 @@ static inline void ip6_flowlabel_proc_fi
 }
 #endif
 
+static inline void ip6_flowlabel_net_exit(struct net *net)
+{
+	ip6_fl_purge(net);
+}
+
+static struct pernet_operations ip6_flowlabel_net_ops = {
+	.exit = ip6_flowlabel_net_exit,
+};
+
 int ip6_flowlabel_init(void)
 {
+	int err;
+
+	err = register_pernet_subsys(&ip6_flowlabel_net_ops);
+	if (err)
+		return err;
 	return ip6_flowlabel_proc_init(&init_net);
 }
 
 void ip6_flowlabel_cleanup(void)
 {
 	del_timer(&ip6_fl_gc_timer);
+	unregister_pernet_subsys(&ip6_flowlabel_net_ops);
 	ip6_flowlabel_proc_fini(&init_net);
 }

-- 
_______________________________________________
Containers mailing list
Containers@lists.linux-foundation.org
https://lists.linux-foundation.org/mailman/listinfo/containers

From: Daniel Lezcano <dlezcano@fr.ibm.com>
Date: Wed, 26 Mar 2008 13:28:32 +0100

> This patch makes the anycast and ip6_flowlabel per namespace.

Applied and pushed out to net-2.6.26, thanks!
_______________________________________________
Containers mailing list
Containers@lists.linux-foundation.org
https://lists.linux-foundation.org/mailman/listinfo/containers