[Bridge] [PATCH net-next v2 01/15] net: bridge: mdb: arrange internal structs so fast-path fields are close
Nikolay Aleksandrov
nikolay at cumulusnetworks.com
Wed Sep 2 11:25:15 UTC 2020
Before this patch we'd need 2 cache lines for fast-path, now all used
fields are in the first cache line.
Signed-off-by: Nikolay Aleksandrov <nikolay at cumulusnetworks.com>
---
net/bridge/br_private.h | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index baa1500f384f..357b6905ecef 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -217,23 +217,27 @@ struct net_bridge_fdb_entry {
struct net_bridge_port_group {
struct net_bridge_port *port;
struct net_bridge_port_group __rcu *next;
- struct hlist_node mglist;
- struct rcu_head rcu;
- struct timer_list timer;
struct br_ip addr;
unsigned char eth_addr[ETH_ALEN] __aligned(2);
unsigned char flags;
+
+ struct timer_list timer;
+ struct hlist_node mglist;
+
+ struct rcu_head rcu;
};
struct net_bridge_mdb_entry {
struct rhash_head rhnode;
struct net_bridge *br;
struct net_bridge_port_group __rcu *ports;
- struct rcu_head rcu;
- struct timer_list timer;
struct br_ip addr;
bool host_joined;
+
+ struct timer_list timer;
struct hlist_node mdb_node;
+
+ struct rcu_head rcu;
};
struct net_bridge_port {
--
2.25.4
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