diff options
| author | Roopa Prabhu <roopa@cumulusnetworks.com> | 2017-08-31 07:18:13 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-31 20:42:41 +0200 |
| commit | e3cfddd577e763496c25ddb855cfff48b1174b63 (patch) | |
| tree | 876459926bede43730c9cbc72d2440b8faa36632 /net | |
| parent | net_sched: add reverse binding for tc class (diff) | |
| download | linux-e3cfddd577e763496c25ddb855cfff48b1174b63.tar.xz linux-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')
| -rw-r--r-- | net/bridge/br_fdb.c | 5 | ||||
| -rw-r--r-- | net/core/net-traces.c | 1 |
2 files changed, 5 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); } } diff --git a/net/core/net-traces.c b/net/core/net-traces.c index 4a0292c97070..1132820c8e62 100644 --- a/net/core/net-traces.c +++ b/net/core/net-traces.c @@ -42,6 +42,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(fib6_table_lookup); EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_add); EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_external_learn_add); EXPORT_TRACEPOINT_SYMBOL_GPL(fdb_delete); +EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_update); #endif EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb); |