Re: race in net/ipv4/ipip.c ?

[Thomas Graf <tgraf@xxxxxxx>]

* YOSHIFUJI Hideaki / ?$B5HF#1QL@ 
<20050112.220816.56650893.yoshfuji@xxxxxxxxxxxxxx> 2005-01-12 22:08
> How about adding multiple tunnels (with same ipip_bucket(t))
> concurrently? :-)
> 

* Lennert Buytenhek <20050112130940.GA12547@xxxxxxxxxxxxxxxxx> 2005-01-12 14:09
> What if you add two tunnels at the same time?  (Or is that perhaps
> synchronised on a higher level?)

Not possible, protected via rtnl semaphore acquired in default
handler of dev_ioctl.