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bonding: fix link recovery in mode 2 when updelay is nonzero

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Before this change when a bond in mode 2 lost link, all of its slaves
lost link, the bonding device would never recover even after the
expiration of updelay. This change removes the updelay when the bond
currently has no usable links. Conforming to bonding.txt section 13.1
paragraph 4.

Fixes: 41f8910040 ("bonding: ignore updelay param when there is no active slave")
Signed-off-by: Jonathan Toppins <jtoppins@redhat.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jonathan Toppins
2022-11-22 16:24:29 -05:00
committed by Jakub Kicinski
parent d43eff0b85
commit f8a65ab2f3
1 changed files with 10 additions and 1 deletions
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11
drivers/net/bonding/bond_main.c
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@@ -2529,7 +2529,16 @@ static int bond_miimon_inspect(struct bonding *bond)
struct slave *slave;
bool ignore_updelay;
ignore_updelay = !rcu_dereference(bond->curr_active_slave);
if (BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP) {
ignore_updelay = !rcu_dereference(bond->curr_active_slave);
} else {
struct bond_up_slave *usable_slaves;
usable_slaves = rcu_dereference(bond->usable_slaves);
if (usable_slaves && usable_slaves->count == 0)
ignore_updelay = true;
}
bond_for_each_slave_rcu(bond, slave, iter) {
bond_propose_link_state(slave, BOND_LINK_NOCHANGE);