Re: [PATCH 09/15] ipv4: Cache output routes in fib_info nexthops.
From: David Miller <davem@davemloft.net>
Date: 2012-07-19 15:52:30
In a dream I found a bug in this patch and the next one. When we fetch a cached route from the FIB info, we have to check if it has been invalidated by a PMTU event or similar. And if so, cmpxchg() it with NULL and release it, so we can build and install a new cached route there. I'll fix this up when I integrate everyone's feedback later today.