linux-toradex.git/include/net/netns, branch v4.6-rc3 Linux kernel for Apalis and Colibri modules ipv6: per netns FIB garbage collection 2016-03-08T20:16:51+00:00 Michal Kubeček mkubecek@suse.cz 2016-03-08T13:44:45+00:00 3dc94f93be161ec4203673de9a34b7362d8985b5 One of our customers observed issues with FIB6 garbage collectors running in different network namespaces blocking each other, resulting in soft lockups (fib6_run_gc() initiated from timer runs always in forced mode). Now that FIB6 walkers are separated per namespace, there is no more need for instances of fib6_run_gc() in different namespaces blocking each other. There is still a call to icmp6_dst_gc() which operates on shared data but this function is protected by its own shared lock. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
One of our customers observed issues with FIB6 garbage collectors
running in different network namespaces blocking each other, resulting
in soft lockups (fib6_run_gc() initiated from timer runs always in
forced mode).

Now that FIB6 walkers are separated per namespace, there is no more need
for instances of fib6_run_gc() in different namespaces blocking each
other. There is still a call to icmp6_dst_gc() which operates on shared
data but this function is protected by its own shared lock.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv6: per netns fib6 walkers 2016-03-08T20:16:51+00:00 Michal Kubeček mkubecek@suse.cz 2016-03-08T13:44:35+00:00 9a03cd8f38efb83c13fbe62aff50eea4efff93da The IPv6 FIB data structures are separated per network namespace but there is still only one global walkers list and one global walker list lock. This means changes in one namespace unnecessarily interfere with walkers in other namespaces. Replace the global list with per-netns lists (and give each its own lock). Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
The IPv6 FIB data structures are separated per network namespace but
there is still only one global walkers list and one global walker list
lock. This means changes in one namespace unnecessarily interfere with
walkers in other namespaces.

Replace the global list with per-netns lists (and give each its own
lock).

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv4: namespacify ip_early_demux sysctl knob 2016-02-17T01:42:54+00:00 Nikolay Borisov kernel@kyup.com 2016-02-15T10:11:30+00:00 e21145a9871aa5ae07e01926105bb8e523d64095 Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv4: Namespacify ip_dynaddr sysctl knob 2016-02-17T01:42:54+00:00 Nikolay Borisov kernel@kyup.com 2016-02-15T10:11:29+00:00 287b7f38fd6842e534db1783cead3843f7677b79 Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv4: Namespaceify ip_default_ttl sysctl knob 2016-02-17T01:42:54+00:00 Nikolay Borisov kernel@kyup.com 2016-02-15T10:11:27+00:00 fa50d974d104113630d68b7d03233a6686230d0c Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
igmp: Namespacify igmp_qrv sysctl knob 2016-02-11T14:59:22+00:00 Nikolay Borisov kernel@kyup.com 2016-02-08T21:29:24+00:00 165094afcee79e4d5b6e94032a5d3be157460b4a Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
igmp: Namespaceify igmp_llm_reports sysctl knob 2016-02-11T14:59:22+00:00 Nikolay Borisov n.borisov@siteground.com 2016-02-08T22:13:50+00:00 87a8a2ae65b7721893c7922f963502be8fa01c94 This was initially introduced in df2cf4a78e488d26 ("IGMP: Inhibit reports for local multicast groups") by defining the sysctl in the ipv4_net_table array, however it was never implemented to be namespace aware. Fix this by changing the code accordingly. Signed-off-by: David S. Miller <davem@davemloft.net> 
This was initially introduced in df2cf4a78e488d26 ("IGMP: Inhibit
reports for local multicast groups") by defining the sysctl in the
ipv4_net_table array, however it was never implemented to be
namespace aware. Fix this by changing the code accordingly.

Signed-off-by: David S. Miller <davem@davemloft.net>
igmp: Namespaceify igmp_max_msf sysctl knob 2016-02-11T14:59:22+00:00 Nikolay Borisov kernel@kyup.com 2016-02-08T21:29:22+00:00 166b6b2d6f01be67a83b87ab5c91350a68b17115 Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
igmp: Namespaceify igmp_max_memberships sysctl knob 2016-02-11T14:59:22+00:00 Nikolay Borisov kernel@kyup.com 2016-02-08T21:29:21+00:00 815c52700746cdcc0874a33390bac334a4b90107 Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipv4: Namespaceify tcp_notsent_lowat sysctl knob 2016-02-07T19:36:11+00:00 Nikolay Borisov kernel@kyup.com 2016-02-03T07:46:57+00:00 4979f2d9f7262b9b180bc83de8d70f7a7721c085 Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>