kernel.git/net/core/net_namespace.c, branch linux-2.6.37.y

net_ns: add __rcu annotations

2010-10-25T21:18:27Z

add __rcu annotation to (struct net)->gen, and use rcu_dereference_protected() in net_assign_generic() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

net: disallow to use net_assign_generic externally

2010-04-27T22:49:02Z

Now there's no need to use this fuction directly because it's handled by register_pernet_device. So to make this simple and easy to understand, make this static to do not tempt potentional users. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

netns: rename unregister_pernet_subsys parameter

2010-04-25T07:49:56Z

Stay consistent with other functions and with comment also and name pernet_operations parameter properly. Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller

netns: Add an explicit rcu_barrier to unregister_pernet_{device|subsys}

2009-12-03T20:22:03Z

This allows namespace exit methods to batch work that comes requires an rcu barrier using call_rcu without having to treat the unregister_pernet_operations cases specially. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller

net: Move network device exit batching

2009-12-03T20:22:02Z

Move network device exit batching from a special case in net_namespace.c to using common mechanisms in dev.c Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller

net: Add support for batching network namespace cleanups

2009-12-03T20:22:01Z

- Add exit_list to struct net to support building lists of network namespaces to cleanup. - Add exit_batch to pernet_operations to allow running operations only once during a network namespace exit. Instead of once per network namespace. - Factor opt ops_exit_list and ops_exit_free so the logic with cleanup up a network namespace does not need to be duplicated. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller

net: Automatically allocate per namespace data.

2009-12-02T00:15:51Z

To get the full benefit of batched network namespace cleanup netowrk device deletion needs to be performed by the generic code. When using register_pernet_gen_device and freeing the data in exit_net it is impossible to delay allocation until after exit_net has called as the device uninit methods are no longer safe. To correct this, and to simplify working with per network namespace data I have moved allocation and deletion of per network namespace data into the network namespace core. The core now frees the data only after all of the network namespace exit routines have run. Now it is only required to set the new fields .id and .size in the pernet_operations structure if you want network namespace data to be managed for you automatically. This makes the current register_pernet_gen_device and register_pernet_gen_subsys routines unnecessary. For the moment I have left them as compatibility wrappers in net_namespace.h They will be removed once all of the users have been updated. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller

net: Batch network namespace destruction.

2009-12-02T00:15:51Z

It is fairly common to kill several network namespaces at once. Either because they are nested one inside the other or because they are cooperating in multiple machine networking experiments. As the network stack control logic does not parallelize easily batch up multiple network namespaces existing together. To get the full benefit of batching the virtual network devices to be removed must be all removed in one batch. For that purpose I have added a loop after the last network device operations have run that batches up all remaining network devices and deletes them. An extra benefit is that the reorganization slightly shrinks the size of the per network namespace data structures replaceing a work_struct with a list_head. In a trivial test with 4K namespaces this change reduced the cost of a destroying 4K namespaces from 7+ minutes (at 12% cpu) to 44 seconds (at 60% cpu). The bulk of that 44s was spent in inet_twsk_purge. Signed-off-by: Eric W. Biederman Signed-off-by: David S. Miller

net: use net_eq to compare nets

2009-11-25T23:14:13Z

Generated with the following semantic patch @@ struct net *n1; struct net *n2; @@ - n1 == n2 + net_eq(n1, n2) @@ struct net *n1; struct net *n2; @@ - n1 != n2 + !net_eq(n1, n2) applied over {include,net,drivers/net}. Signed-off-by: Octavian Purdila Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2009-08-13T00:44:53Z

Conflicts: arch/microblaze/include/asm/socket.h