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authorRoopa Prabhu <roopa@cumulusnetworks.com>2017-08-30 22:18:13 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-31 11:42:41 -0700
commite3cfddd577e763496c25ddb855cfff48b1174b63 (patch)
tree876459926bede43730c9cbc72d2440b8faa36632 /net/bridge/br_fdb.c
parentnet_sched: add reverse binding for tc class (diff)
downloadlinux-dev-e3cfddd577e763496c25ddb855cfff48b1174b63.tar.xz
linux-dev-e3cfddd577e763496c25ddb855cfff48b1174b63.zip
bridge: add tracepoint in br_fdb_update
This extends bridge fdb table tracepoints to also cover learned fdb entries in the br_fdb_update path. Note that unlike other tracepoints I have moved this to when the fdb is modified because this is in the datapath and can generate a lot of noise in the trace output. br_fdb_update is also called from added_by_user context in the NTF_USE case which is already traced ..hence the !added_by_user check. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_fdb.c')
-rw-r--r--net/bridge/br_fdb.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index be5e1da6d824..4ea5c8bbe286 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -583,8 +583,10 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
fdb->updated = now;
if (unlikely(added_by_user))
fdb->added_by_user = 1;
- if (unlikely(fdb_modified))
+ if (unlikely(fdb_modified)) {
+ trace_br_fdb_update(br, source, addr, vid, added_by_user);
fdb_notify(br, fdb, RTM_NEWNEIGH);
+ }
}
} else {
spin_lock(&br->hash_lock);
@@ -593,6 +595,7 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
if (fdb) {
if (unlikely(added_by_user))
fdb->added_by_user = 1;
+ trace_br_fdb_update(br, source, addr, vid, added_by_user);
fdb_notify(br, fdb, RTM_NEWNEIGH);
}
}