bridge: move to workqueue gc
authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>
Sat, 4 Feb 2017 17:05:07 +0000 (18:05 +0100)
committerDavid S. Miller <davem@davemloft.net>
Tue, 7 Feb 2017 03:53:13 +0000 (22:53 -0500)
commitf7cdee8a79a1cb03fa9ca71b825e72f880b344e1
treebda0a6e29e0d7748d2f7e59a8da9c5194f486b36
parent1f90c7f3470580e24da25f6a6c1fb480ed9371ac
bridge: move to workqueue gc

Move the fdb garbage collector to a workqueue which fires at least 10
milliseconds apart and cleans chain by chain allowing for other tasks
to run in the meantime. When having thousands of fdbs the system is much
more responsive. Most importantly remove the need to check if the
matched entry has expired in __br_fdb_get that causes false-sharing and
is completely unnecessary if we cleanup entries, at worst we'll get 10ms
of traffic for that entry before it gets deleted.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/bridge/br_device.c
net/bridge/br_fdb.c
net/bridge/br_if.c
net/bridge/br_ioctl.c
net/bridge/br_netlink.c
net/bridge/br_private.h
net/bridge/br_stp.c
net/bridge/br_stp_if.c
net/bridge/br_stp_timer.c
net/bridge/br_sysfs_br.c