On Thu, 2012-08-30 at 13:34 -0400, David Miller wrote:
From: Eric Dumazet <redacted>
Date: Tue, 28 Aug 2012 15:33:07 -0700
quoted
From: Eric Dumazet <redacted>
[PATCH] ipv4: must use rcu protection while calling fib_lookup
Following lockdep splat was reported by Pavel Roskin :
...
quoted
Signed-off-by: Eric Dumazet <redacted>
Reported-by: Pavel Roskin <redacted>
Applied, thanks.
It looks like the redirect handlers might have the same problem?
Hi David
Correct me if I am wrong, but redirect handlers should all run under
rcu_read_lock() protection already.
rcu_read_lock() is done in ip_local_deliver_finish() or
ip_rt_send_redirect() for the forward path.
And above of them, we also have rcu_read_lock() done in
__netif_receive_skb()