Tao Liu e4df1b0c24 openvswitch: meter: fix race when getting now_ms. ... We have observed meters working unexpected if traffic is 3+Gbit/s with multiple connections. now_ms is not pretected by meter->lock, we may get a negative long_delta_ms when another cpu updated meter->used, then: delta_ms = (u32)long_delta_ms; which will be a large value. band->bucket += delta_ms * band->rate; then we get a wrong band->bucket. OpenVswitch userspace datapath has fixed the same issue[1] some time ago, and we port the implementation to kernel datapath. [1] https://patchwork.ozlabs.org/project/openvswitch/patch/20191025114436.9746-1-i.maximets@ovn.org/ Fixes: 96fbc13d7e ("openvswitch: Add meter infrastructure") Signed-off-by: Tao Liu <thomas.liu@ucloud.cn> Suggested-by: Ilya Maximets <i.maximets@ovn.org> Reviewed-by: Ilya Maximets <i.maximets@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-05-13 15:54:59 -07:00
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actions.c	openvswitch: fix stack OOB read while fragmenting IPv4 packets	2021-04-29 15:31:53 -07:00
conntrack.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-04-09 20:48:35 -07:00
conntrack.h
datapath.c
datapath.h
dp_notify.c
flow_netlink.c
flow_netlink.h
flow_table.c
flow_table.h
flow.c
flow.h
Kconfig
Makefile
meter.c	openvswitch: meter: fix race when getting now_ms.	2021-05-13 15:54:59 -07:00
meter.h
vport-geneve.c
vport-gre.c
vport-internal_dev.c
vport-internal_dev.h
vport-netdev.c	net: openvswitch: Use 'skb_push_rcsum()' instead of hand coding it	2021-04-04 01:43:02 -07:00
vport-netdev.h
vport-vxlan.c
vport.c	openvswitch: Warn over-mtu packets only if iface is UP.	2021-03-16 16:28:30 -07:00
vport.h	openvswitch: Fix a typo	2021-03-22 12:59:46 -07:00