On Thu, Oct 19, 2017 at 02:07:10PM +0000, Paolo Abeni wrote:
> After the commit 2b760fcf5cfb ("ipv6: hook up exception table
> to store dst cache"), the fib6 gc is not started after the
> creation of a RTF_CACHE via a redirect or pmtu update, since
> fib6_add() isn't invoked anymore for such dsts.
>
> We need the fib6 gc to run periodically to clean the RTF_CACHE,
> or the dst will stay there forever.
>
> Fix it by explicitly calling fib6_force_start_gc() on successful
> exception creation. gc_args->more accounting will ensure that
> the gc timer will run for whatever time needed to properly
> clean the table.
>
> v2 -> v3:
> - clarified the commit message
>
> Fixes: 2b760fcf5cfb ("ipv6: hook up exception table to store dst cache")
> Signed-off-by: Paolo Abeni <pab...@redhat.com>
Acked-by: Martin KaFai Lau <ka...@fb.com>
