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tipc: Introduce __tipc_nl_bearer_enable 

Introduce __tipc_nl_bearer_enable() 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 13:38:00 +08:00 committed by David S. Miller
parent d59d8b77ab
commit 45cf7edfbc
2 changed files with 11 additions and 7 deletions
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17
net/tipc/bearer.c
View File

@ -855,7 +855,7 @@ int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info)
return err;
}
int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
int __tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
{
int err;
char *bearer;
@ -897,15 +897,18 @@ int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
prio = nla_get_u32(props[TIPC_NLA_PROP_PRIO]);
}
return tipc_enable_bearer(net, bearer, domain, prio, attrs);
}
int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info)
{
int err;
rtnl_lock();
err = tipc_enable_bearer(net, bearer, domain, prio, attrs);
if (err) {
rtnl_unlock();
return err;
}
err = __tipc_nl_bearer_enable(skb, info);
rtnl_unlock();
return 0;
return err;
}
int tipc_nl_bearer_add(struct sk_buff *skb, struct genl_info *info)

1
net/tipc/bearer.h
View File

@ -190,6 +190,7 @@ extern struct tipc_media udp_media_info;
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_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);
int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info);