[PATCH 2/2] bridge: round off STP perodic timers
From: Stephen Hemminger <hidden>
Date: 2007-05-30 19:26:27
Also in:
bridge
Peroidic STP timers don't have to be exact. The hold timer runs at 1HZ, and the hello timer normally runs at 2HZ; save power by aligning it them to next second. Signed-off-by: Stephen Hemminger <redacted> --- net/bridge/br_stp.c | 3 ++- net/bridge/br_stp_timer.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-)
--- a/net/bridge/br_stp.c 2007-05-30 11:42:16.000000000 -0700
+++ b/net/bridge/br_stp.c 2007-05-30 11:51:51.000000000 -0700@@ -178,7 +178,8 @@ void br_transmit_config(struct net_bridg br_send_config_bpdu(p, &bpdu); p->topology_change_ack = 0; p->config_pending = 0; - mod_timer(&p->hold_timer, jiffies + BR_HOLD_TIME); + mod_timer(&p->hold_timer, + round_jiffies(jiffies + BR_HOLD_TIME)); } } --- a/net/bridge/br_stp_timer.c 2007-05-30 11:42:16.000000000 -0700 +++ b/net/bridge/br_stp_timer.c 2007-05-30 11:53:08.000000000 -0700
@@ -42,7 +42,7 @@ static void br_hello_timer_expired(unsig if (br->dev->flags & IFF_UP) { br_config_bpdu_generation(br); - mod_timer(&br->hello_timer, jiffies + br->hello_time); + mod_timer(&br->hello_timer, round_jiffies(jiffies + br->hello_time)); } spin_unlock(&br->lock); }