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Commit 8518e9bb authored by Kirill Tkhai's avatar Kirill Tkhai Committed by David S. Miller
Browse files

net: Add more comments



This adds comments to different places to improve
readability.

Signed-off-by: default avatarKirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4420bf21
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+4 −0
Original line number Diff line number Diff line
@@ -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
+2 −0
Original line number Diff line number Diff line
@@ -43,6 +43,8 @@ static bool init_net_initialized;
/*
 * pernet_ops_rwsem: protects: pernet_list, net_generic_ids,
 * init_net_initialized and first_device pointer.
 * This is internal net namespace object. Please, don't use it
 * outside.
 */
DECLARE_RWSEM(pernet_ops_rwsem);

+1 −1
Original line number Diff line number Diff line
@@ -459,7 +459,7 @@ static void rtnl_lock_unregistering_all(void)
 */
void rtnl_link_unregister(struct rtnl_link_ops *ops)
{
	/* Close the race with cleanup_net() */
	/* Close the race with setup_net() and cleanup_net() */
	down_write(&pernet_ops_rwsem);
	rtnl_lock_unregistering_all();
	__rtnl_link_unregister(ops);