path: root/net
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authorstephen hemminger <shemminger@vyatta.com>2010-06-15 06:14:12 +0000
committerDavid S. Miller <davem@davemloft.net>2010-06-17 13:49:14 -0700
commit25442e06d20aaba7d7b16438078a562b3e4cf19b (patch)
tree93df63e0e4f35d6d649150e2c49aa47af62961dd /net
parentaabef8b240880439b91574c9a9e33dcc44bfd8c7 (diff)
bridge: fdb cleanup runs too often
It is common in end-node, non STP bridges to set forwarding delay to zero; which causes the forwarding database cleanup to run every clock tick. Change to run only as soon as needed or at next ageing timer interval which ever is sooner. Use round_jiffies_up macro rather than attempting round up by changing value. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
1 files changed, 2 insertions, 4 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 26637439965..b01dde35a69 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -128,7 +128,7 @@ void br_fdb_cleanup(unsigned long _data)
struct net_bridge *br = (struct net_bridge *)_data;
unsigned long delay = hold_time(br);
- unsigned long next_timer = jiffies + br->forward_delay;
+ unsigned long next_timer = jiffies + br->ageing_time;
int i;
@@ -149,9 +149,7 @@ void br_fdb_cleanup(unsigned long _data)
- /* Add HZ/4 to ensure we round the jiffies upwards to be after the next
- * timer, otherwise we might round down and will have no-op run. */
- mod_timer(&br->gc_timer, round_jiffies(next_timer + HZ/4));
+ mod_timer(&br->gc_timer, round_jiffies_up(next_timer));
/* Completely flush all dynamic entries in forwarding database.*/