From 41f8910040639eb106b1a5b5301aab79ecde4940 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Fri, 24 Apr 2009 03:57:29 +0000 Subject: [PATCH] bonding: ignore updelay param when there is no active slave Pointed out by Sean E. Millichamp. Quote from Documentation/networking/bonding.txt: "Note that when a bonding interface has no active links, the driver will immediately reuse the first link that goes up, even if the updelay parameter has been specified (the updelay is ignored in this case). If there are slave interfaces waiting for the updelay timeout to expire, the interface that first went into that state will be immediately reused. This reduces down time of the network if the value of updelay has been overestimated, and since this occurs only in cases with no connectivity, there is no additional penalty for ignoring the updelay." This patch actually changes the behaviour in this way. Signed-off-by: Jiri Pirko drivers/net/bonding/bond_main.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index e4166ee9091d..fd738367d740 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2247,6 +2247,9 @@ static int bond_miimon_inspect(struct bonding *bond) { struct slave *slave; int i, link_state, commit = 0; + bool ignore_updelay; + + ignore_updelay = !bond->curr_active_slave ? true : false; bond_for_each_slave(bond, slave, i) { slave->new_link = BOND_LINK_NOCHANGE; @@ -2311,6 +2314,7 @@ static int bond_miimon_inspect(struct bonding *bond) ": %s: link status up for " "interface %s, enabling it in %d ms.\n", bond->dev->name, slave->dev->name, + ignore_updelay ? 0 : bond->params.updelay * bond->params.miimon); } @@ -2329,9 +2333,13 @@ static int bond_miimon_inspect(struct bonding *bond) continue; } + if (ignore_updelay) + slave->delay = 0; + if (slave->delay <= 0) { slave->new_link = BOND_LINK_UP; commit++; + ignore_updelay = false; continue; } -- GitLab