These pernet operations consist of exit() and exit_batch() methods.
default_device_exit() moves not-local and virtual devices to init_net.
There is nothing exciting, because this may happen in any time
on a working system, and rtnl_lock() and synchronize_net() protect
us from all cases of external dereference.
The same for default_device_exit_batch(). Similar unregisteration
may happen in any time on a system. Here several lists (like todo_list),
which are accessed under rtnl_lock(). After rtnl_unlock() and
netdev_run_todo() all the devices are flushed.
Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com>
Acked-by: Andrei Vagin <ava...@virtuozzo.com>
---
net/core/dev.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/net/core/dev.c b/net/core/dev.c
index dc7506f00a66..df5241c8eda1 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -8934,6 +8934,7 @@ static void __net_exit default_device_exit_batch(struct
list_head *net_list)
static struct pernet_operations __net_initdata default_device_ops = {
.exit = default_device_exit,
.exit_batch = default_device_exit_batch,
+ .async = true,
};
/*
