lkml.org 
[lkml]   [2018]   [Jul]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 011/105] bonding: re-evaluate force_primary when the primary slave name changes
Date
4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

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
@@ -1115,6 +1115,7 @@ 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;
}

\
 
 \ /
  Last update: 2018-07-01 20:37    [W:0.465 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site