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| author | stephen hemminger <shemminger@vyatta.com> | 2011-04-04 14:03:27 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-04-04 17:22:25 -0700 |
| commit | 03e9b64b89243ccc6f8f48f5955a5a78a8ca1431 (patch) | |
| tree | 5ab589f74076a17cea2b08aca5ce4354cde32142 /net/bridge/br_fdb.c | |
| parent | 0545a3037773512d3448557ba048cebb73b3e4af (diff) | |
| download | lwn-03e9b64b89243ccc6f8f48f5955a5a78a8ca1431.tar.gz lwn-03e9b64b89243ccc6f8f48f5955a5a78a8ca1431.zip | |
bridge: change arguments to fdb_create
Later patch provides ability to create non-local static entry.
To make this easier move the updating of the flag values to
after the code that creates entry.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.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.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 88485cc74dc3..70bd0bf04099 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -320,8 +320,7 @@ static inline struct net_bridge_fdb_entry *fdb_find(struct hlist_head *head, static struct net_bridge_fdb_entry *fdb_create(struct hlist_head *head, struct net_bridge_port *source, - const unsigned char *addr, - int is_local) + const unsigned char *addr) { struct net_bridge_fdb_entry *fdb; @@ -329,10 +328,9 @@ static struct net_bridge_fdb_entry *fdb_create(struct hlist_head *head, if (fdb) { memcpy(fdb->addr.addr, addr, ETH_ALEN); fdb->dst = source; - fdb->is_local = is_local; - fdb->is_static = is_local; + fdb->is_local = 0; + fdb->is_static = 0; fdb->ageing_timer = jiffies; - hlist_add_head_rcu(&fdb->hlist, head); } return fdb; @@ -360,12 +358,15 @@ static int fdb_insert(struct net_bridge *br, struct net_bridge_port *source, fdb_delete(fdb); } - if (!fdb_create(head, source, addr, 1)) + fdb = fdb_create(head, source, addr); + if (!fdb) return -ENOMEM; + fdb->is_local = fdb->is_static = 1; return 0; } +/* Add entry for local address of interface */ int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, const unsigned char *addr) { @@ -407,8 +408,9 @@ void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, } } else { spin_lock(&br->hash_lock); - if (!fdb_find(head, addr)) - fdb_create(head, source, addr, 0); + if (likely(!fdb_find(head, addr))) + fdb_create(head, source, addr); + /* else we lose race and someone else inserts * it first, don't bother updating */ |