Upstream commit:
commit
40773966ccf1985a1b2bb570a03cbeaf1cbd4e00
Author: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Date: Thu Sep 15 19:11:52 2016 -0300
openvswitch: fix flow stats accounting when node 0 is not possible
On a system with only node 1 as possible, all statistics is going to be
accounted on node 0 as it will have a single writer.
However, when getting and clearing the statistics, node 0 is not going
to be considered, as it's not a possible node.
Tested that statistics are not zero on a system with only node 1
possible. Also compile-tested with CONFIG_NUMA off.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch contained a memory leak that is fixed in this backport.
The next patch silently fixed that in upstream, too.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Signed-off-by: Joe Stringer <joe@ovn.org>
*tcp_flags = 0;
memset(ovs_stats, 0, sizeof(*ovs_stats));
- for_each_node(node) {
+ /* We open code this to make sure node 0 is always considered */
+ for (node = 0; node < MAX_NUMNODES; node = next_node(node, node_possible_map)) {
struct flow_stats *stats = rcu_dereference_ovsl(flow->stats[node]);
if (stats) {
{
int node;
- for_each_node(node) {
+ /* We open code this to make sure node 0 is always considered */
+ for (node = 0; node < MAX_NUMNODES; node = next_node(node, node_possible_map)) {
struct flow_stats *stats = ovsl_dereference(flow->stats[node]);
if (stats) {
kfree(flow->id.unmasked_key);
if (flow->sf_acts)
ovs_nla_free_flow_actions((struct sw_flow_actions __force *)flow->sf_acts);
- for_each_node(node)
+ /* We open code this to make sure node 0 is always considered */
+ for (node = 0; node < MAX_NUMNODES; node = next_node(node, node_possible_map))
if (flow->stats[node])
kmem_cache_free(flow_stats_cache,
rcu_dereference_raw(flow->stats[node]));