linux/net/llc
Eric Dumazet 941666c2e3 net: RCU conversion of dev_getbyhwaddr() and arp_ioctl()
Le dimanche 05 décembre 2010 à 09:19 +0100, Eric Dumazet a écrit :

> Hmm..
>
> If somebody can explain why RTNL is held in arp_ioctl() (and therefore
> in arp_req_delete()), we might first remove RTNL use in arp_ioctl() so
> that your patch can be applied.
>
> Right now it is not good, because RTNL wont be necessarly held when you
> are going to call arp_invalidate() ?

While doing this analysis, I found a refcount bug in llc, I'll send a
patch for net-2.6

Meanwhile, here is the patch for net-next-2.6

Your patch then can be applied after mine.

Thanks

[PATCH] net: RCU conversion of dev_getbyhwaddr() and arp_ioctl()

dev_getbyhwaddr() was called under RTNL.

Rename it to dev_getbyhwaddr_rcu() and change all its caller to now use
RCU locking instead of RTNL.

Change arp_ioctl() to use RCU instead of RTNL locking.

Note: this fix a dev refcount bug in llc

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-08 10:07:24 -08:00
..
af_llc.c net: RCU conversion of dev_getbyhwaddr() and arp_ioctl() 2010-12-08 10:07:24 -08:00
Kconfig
llc_c_ac.c
llc_c_ev.c
llc_c_st.c
llc_conn.c
llc_core.c
llc_if.c
llc_input.c
llc_output.c
llc_pdu.c
llc_proc.c
llc_s_ac.c
llc_s_ev.c
llc_s_st.c
llc_sap.c
llc_station.c
Makefile
sysctl_net_llc.c