4.17-stable review patch. If anyone has any objections, please let me know.
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From: Xiangning Yu yuxiangning@gmail.com
[ Upstream commit eb55bbf865d9979098c6a7a17cbdb41237ece951 ]
There is a timing issue under active-standy mode, when bond_enslave() is called, bond->params.primary might not be initialized yet.
Any time the primary slave string changes, bond->force_primary should be set to true to make sure the primary becomes the active slave.
Signed-off-by: Xiangning Yu yuxiangning@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/bonding/bond_options.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/net/bonding/bond_options.c +++ b/drivers/net/bonding/bond_options.c @@ -1142,6 +1142,7 @@ static int bond_option_primary_set(struc slave->dev->name); rcu_assign_pointer(bond->primary_slave, slave); strcpy(bond->params.primary, slave->dev->name); + bond->force_primary = true; bond_select_active_slave(bond); goto out; }