On 1/7/18 3:45 AM, Ido Schimmel wrote: > When routes that are a part of a multipath route are evaluated by > fib6_ifdown() in response to NETDEV_DOWN and NETDEV_UNREGISTER events > the state of their sibling routes is not considered. > > This will change in subsequent patches in order to align IPv6 with > IPv4's behavior. For example, when the last sibling in a multipath route > becomes dead, the entire multipath route needs to be removed. > > To prevent the tree walker from re-evaluating all the sibling routes > each time, we can simply evaluate them once - when the first sibling is > traversed. > > If we determine the entire multipath route needs to be removed, then the > 'should_flush' bit is set in all the siblings, which will cause the > walker to flush them when it traverses them. > > Signed-off-by: Ido Schimmel <ido...@mellanox.com> > --- > include/net/ip6_fib.h | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-)
Acked-by: David Ahern <dsah...@gmail.com>
