Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e71e0349eb32bc438fa80d8990c6f3592967d111
Commit:     e71e0349eb32bc438fa80d8990c6f3592967d111
Parent:     99bc9c4e45e7e783cf0b0a25cc03a103c038f254
Author:     Daniel Lezcano <[EMAIL PROTECTED]>
AuthorDate: Thu Jan 10 02:56:03 2008 -0800
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 15:01:18 2008 -0800

    [NETNS][IPV6]: Make ip6_frags per namespace.
    
    The ip6_frags is moved to the network namespace structure.  Because
    there can be multiple instances of the network namespaces, and the
    ip6_frags is no longer a global static variable, a helper function has
    been added to facilitate the initialization of the variables.
    
    Until the ipv6 protocol is not per namespace, the variables are
    accessed relatively from the initial network namespace.
    
    Signed-off-by: Daniel Lezcano <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
 include/net/ipv6.h         |    3 ---
 include/net/netns/ipv6.h   |    3 +++
 net/ipv6/af_inet6.c        |    8 ++++++++
 net/ipv6/reassembly.c      |   16 +++++++---------
 net/ipv6/sysctl_net_ipv6.c |   12 ++++++++----
 5 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index d03a407..c8e8cb2 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -572,9 +572,6 @@ extern int inet6_hash_connect(struct 
inet_timewait_death_row *death_row,
 /*
  * reassembly.c
  */
-struct inet_frags_ctl;
-extern struct inet_frags_ctl ip6_frags_ctl;
-
 extern const struct proto_ops inet6_stream_ops;
 extern const struct proto_ops inet6_dgram_ops;
 
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 42b9b41..ea4a71a 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -2,6 +2,8 @@
  * ipv6 in net namespaces
  */
 
+#include <net/inet_frag.h>
+
 #ifndef __NETNS_IPV6_H__
 #define __NETNS_IPV6_H__
 
@@ -11,6 +13,7 @@ struct netns_sysctl_ipv6 {
 #ifdef CONFIG_SYSCTL
        struct ctl_table_header *table;
 #endif
+       struct inet_frags_ctl frags;
        int bindv6only;
 };
 
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 70662bf..c4a1882 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -72,6 +72,8 @@ MODULE_LICENSE("GPL");
 static struct list_head inetsw6[SOCK_MAX];
 static DEFINE_SPINLOCK(inetsw6_lock);
 
+void ipv6_frag_sysctl_init(struct net *net);
+
 static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
 {
        const int offset = sk->sk_prot->obj_size - sizeof(struct ipv6_pinfo);
@@ -720,6 +722,12 @@ static void cleanup_ipv6_mibs(void)
 static int inet6_net_init(struct net *net)
 {
        net->ipv6.sysctl.bindv6only = 0;
+       net->ipv6.sysctl.frags.high_thresh = 256 * 1024;
+       net->ipv6.sysctl.frags.low_thresh = 192 * 1024;
+       net->ipv6.sysctl.frags.timeout = IPV6_FRAG_TIMEOUT;
+       net->ipv6.sysctl.frags.secret_interval = 10 * 60 * HZ;
+       ipv6_frag_sysctl_init(net);
+
        return 0;
 }
 
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index bf4173d..5cd0bc6 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -82,13 +82,6 @@ struct frag_queue
        __u16                   nhoffset;
 };
 
-struct inet_frags_ctl ip6_frags_ctl __read_mostly = {
-       .high_thresh     = 256 * 1024,
-       .low_thresh      = 192 * 1024,
-       .timeout         = IPV6_FRAG_TIMEOUT,
-       .secret_interval = 10 * 60 * HZ,
-};
-
 static struct inet_frags ip6_frags;
 
 int ip6_frag_nqueues(void)
@@ -605,7 +598,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
                return 1;
        }
 
-       if (atomic_read(&ip6_frags.mem) > ip6_frags_ctl.high_thresh)
+       if (atomic_read(&ip6_frags.mem) > 
init_net.ipv6.sysctl.frags.high_thresh)
                ip6_evictor(ip6_dst_idev(skb->dst));
 
        if ((fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr,
@@ -632,6 +625,11 @@ static struct inet6_protocol frag_protocol =
        .flags          =       INET6_PROTO_NOPOLICY,
 };
 
+void ipv6_frag_sysctl_init(struct net *net)
+{
+       ip6_frags.ctl = &net->ipv6.sysctl.frags;
+}
+
 int __init ipv6_frag_init(void)
 {
        int ret;
@@ -639,7 +637,7 @@ int __init ipv6_frag_init(void)
        ret = inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT);
        if (ret)
                goto out;
-       ip6_frags.ctl = &ip6_frags_ctl;
+
        ip6_frags.hashfn = ip6_hashfn;
        ip6_frags.constructor = ip6_frag_init;
        ip6_frags.destructor = NULL;
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index 13be97a..ae3cfd1 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -43,7 +43,7 @@ static ctl_table ipv6_table_template[] = {
        {
                .ctl_name       = NET_IPV6_IP6FRAG_HIGH_THRESH,
                .procname       = "ip6frag_high_thresh",
-               .data           = &ip6_frags_ctl.high_thresh,
+               .data           = &init_net.ipv6.sysctl.frags.high_thresh,
                .maxlen         = sizeof(int),
                .mode           = 0644,
                .proc_handler   = &proc_dointvec
@@ -51,7 +51,7 @@ static ctl_table ipv6_table_template[] = {
        {
                .ctl_name       = NET_IPV6_IP6FRAG_LOW_THRESH,
                .procname       = "ip6frag_low_thresh",
-               .data           = &ip6_frags_ctl.low_thresh,
+               .data           = &init_net.ipv6.sysctl.frags.low_thresh,
                .maxlen         = sizeof(int),
                .mode           = 0644,
                .proc_handler   = &proc_dointvec
@@ -59,7 +59,7 @@ static ctl_table ipv6_table_template[] = {
        {
                .ctl_name       = NET_IPV6_IP6FRAG_TIME,
                .procname       = "ip6frag_time",
-               .data           = &ip6_frags_ctl.timeout,
+               .data           = &init_net.ipv6.sysctl.frags.timeout,
                .maxlen         = sizeof(int),
                .mode           = 0644,
                .proc_handler   = &proc_dointvec_jiffies,
@@ -68,7 +68,7 @@ static ctl_table ipv6_table_template[] = {
        {
                .ctl_name       = NET_IPV6_IP6FRAG_SECRET_INTERVAL,
                .procname       = "ip6frag_secret_interval",
-               .data           = &ip6_frags_ctl.secret_interval,
+               .data           = &init_net.ipv6.sysctl.frags.secret_interval,
                .maxlen         = sizeof(int),
                .mode           = 0644,
                .proc_handler   = &proc_dointvec_jiffies,
@@ -117,6 +117,10 @@ static int ipv6_sysctl_net_init(struct net *net)
        ipv6_table[1].child = ipv6_icmp_table;
 
        ipv6_table[2].data = &net->ipv6.sysctl.bindv6only;
+       ipv6_table[3].data = &net->ipv6.sysctl.frags.high_thresh;
+       ipv6_table[4].data = &net->ipv6.sysctl.frags.low_thresh;
+       ipv6_table[5].data = &net->ipv6.sysctl.frags.timeout;
+       ipv6_table[6].data = &net->ipv6.sysctl.frags.secret_interval;
 
        net->ipv6.sysctl.table = register_net_sysctl_table(net, 
net_ipv6_ctl_path,
                                                           ipv6_table);
-
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