Eric Dumazet b26ef81c46 drop_monitor: remove quadratic behavior
drop_monitor is using an unique list on which all netdevices in
the host have an element, regardless of their netns.

This scales poorly, not only at device unregister time (what I
caught during my netns dismantle stress tests), but also at packet
processing time whenever trace_napi_poll_hit() is called.

If the intent was to avoid adding one pointer in 'struct net_device'
then surely we prefer O(1) behavior.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-02-23 12:39:58 +00:00
..
2021-12-16 07:18:35 -08:00
2022-01-22 08:33:37 +02:00
2021-11-16 19:07:54 -08:00
2020-06-18 20:46:23 -07:00