net: bridge: vlan: use an RCU array for large flood sets

Walking the master VLAN's port-VLAN list avoids considering ports outside
the VLAN but its pointer chasing becomes more expensive than array when
many ports participate. Add an rcu array of port-VLAN pointers for larger
flood sets. Rebuild and publish the array under RTNL when VLAN membership
changes. Continue using the list for small flood sets and as a fallback
if the array allocation fails.

Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260918152950.1938259-7-razor@blackwall.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions