diff options
| author |   Kirill Tkhai <ktkhai@virtuozzo.com> | 2018-03-27 18:02:32 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-03-27 13:18:09 -0400 |
| commit | 8518e9bb98b602eca0717d5aaad63ccbe56539d2 (patch) | |
| tree | dc2887c1b2089055ad7c2d13df0ea20b3a27969b /include | |
| parent | net: Rename net_sem to pernet_ops_rwsem (diff) | |
| download | linux-dev-8518e9bb98b602eca0717d5aaad63ccbe56539d2.tar.xz linux-dev-8518e9bb98b602eca0717d5aaad63ccbe56539d2.zip | |
net: Add more comments
This adds comments to different places to improve
readability.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/net_namespace.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 922e8b6fb422..1ab4f920f109 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -323,6 +323,10 @@ struct pernet_operations { * have to keep in mind all other pernet_operations and * to introduce a locking, if they share common resources. * + * The only time they are called with exclusive lock is + * from register_pernet_subsys(), unregister_pernet_subsys() + * register_pernet_device() and unregister_pernet_device(). + * * Exit methods using blocking RCU primitives, such as * synchronize_rcu(), should be implemented via exit_batch. * Then, destruction of a group of net requires single |