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tipc: Introduce __tipc_nl_bearer_disable

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Introduce __tipc_nl_bearer_disable() which doesn't hold RTNL lock.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ying Xue 2018-02-14 13:37:59 +08:00 committed by David S. Miller
parent e5d1a1eec0
commit d59d8b77ab
2 changed files with 14 additions and 6 deletions
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19
net/tipc/bearer.c
View file

@ -813,7 +813,7 @@ err_out:
return err;
}
int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
int __tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
{
int err;
char *name;
@ -835,19 +835,26 @@ int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
name = nla_data(attrs[TIPC_NLA_BEARER_NAME]);
rtnl_lock();
bearer = tipc_bearer_find(net, name);
if (!bearer) {
rtnl_unlock();
if (!bearer)
return -EINVAL;
}
bearer_disable(net, bearer);
rtnl_unlock();
return 0;
}
int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
{
int err;
rtnl_lock();
err = __tipc_nl_bearer_disable(skb, info);
rtnl_unlock();
return err;
}
int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
{
int err;

1
net/tipc/bearer.h
View file

@ -188,6 +188,7 @@ extern struct tipc_media udp_media_info;
#endif
int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info);
int __tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info);
int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info);
int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb);
int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info);