From: Stefano Brivio <sbrivio@redhat.com>
To: David Ahern <dsahern@gmail.com>
Cc: David Miller <davem@davemloft.net>,
Jianlin Shi <jishi@redhat.com>, Wei Wang <weiwan@google.com>,
Martin KaFai Lau <kafai@fb.com>,
Eric Dumazet <edumazet@google.com>,
Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>,
netdev@vger.kernel.org
Subject: Re: [PATCH net-next v6 08/11] ipv6: Dump route exceptions if requested
Date: Thu, 20 Jun 2019 21:02:26 +0200 [thread overview]
Message-ID: <20190620210226.724c2893@redhat.com> (raw)
In-Reply-To: <26efcecf-5a96-330b-c315-5d9750c99766@gmail.com>
On Thu, 20 Jun 2019 08:24:22 -0600
David Ahern <dsahern@gmail.com> wrote:
> On 6/19/19 5:59 PM, Stefano Brivio wrote:
> > + if (filter->dump_exceptions) {
> > + struct fib6_nh_exception_dump_walker w = { .dump = arg,
> > + .rt = rt,
> > + .flags = flags,
> > + .skip = skip,
> > + .count = 0 };
> > + int err;
> > +
> > + if (rt->nh) {
> > + err = nexthop_for_each_fib6_nh(rt->nh,
> > + rt6_nh_dump_exceptions,
> > + &w);
>
> much like ipv4, the skb can fill in the middle of a fib6_nh bucket, so
> you need to track which nexthop is in progress.
Same as my comment about IPv4, except that, for IPv6, distinction
between skip and skip_in_node is strictly needed, but buckets and
nexthops are traversed in the same order and 'sernum' changes don't
affect that.
--
Stefano
next prev parent reply other threads:[~2019-06-20 19:02 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-19 23:59 [PATCH net-next v6 00/11] Fix listing (IPv4, IPv6) and flushing (IPv6) of cached route exceptions Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 01/11] fib_frontend, ip6_fib: Select routes or exceptions dump from RTM_F_CLONED Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 02/11] ipv4/fib_frontend: Allow RTM_F_CLONED flag to be used for filtering Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 03/11] ipv4/route: Allow NULL flowinfo in rt_fill_info() Stefano Brivio
2019-06-20 13:15 ` David Ahern
2019-06-20 19:00 ` Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 04/11] ipv4: Dump route exceptions if requested Stefano Brivio
2019-06-20 13:31 ` David Ahern
2019-06-20 19:01 ` Stefano Brivio
2019-06-20 19:21 ` David Ahern
2019-06-19 23:59 ` [PATCH net-next v6 05/11] Revert "net/ipv6: Bail early if user only wants cloned entries" Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 06/11] ipv6/route: Don't match on fc_nh_id if not set in ip6_route_del() Stefano Brivio
2019-06-20 14:16 ` David Ahern
2019-06-20 19:01 ` Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 07/11] ipv6/route: Change return code of rt6_dump_route() for partial node dumps Stefano Brivio
2019-06-20 14:17 ` David Ahern
2019-06-19 23:59 ` [PATCH net-next v6 08/11] ipv6: Dump route exceptions if requested Stefano Brivio
2019-06-20 14:24 ` David Ahern
2019-06-20 19:02 ` Stefano Brivio [this message]
2019-06-20 19:22 ` David Ahern
2019-06-19 23:59 ` [PATCH net-next v6 09/11] ip6_fib: Don't discard nodes with valid routing information in fib6_locate_1() Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 10/11] selftests: pmtu: Introduce list_flush_ipv4_exception test case Stefano Brivio
2019-06-19 23:59 ` [PATCH net-next v6 11/11] selftests: pmtu: Make list_flush_ipv6_exception test more demanding Stefano Brivio
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