linux/drivers/net/bonding
Milos Vyletel eb492f7443 bonding: unset primary slave via sysfs
When bonding module is loaded with primary parameter and one decides to unset
primary slave using sysfs these settings are not preserved during bond device
restart. Primary slave is only unset once and it's not remembered in
bond->params structure. Below is example of recreation.

 grep OPTS /etc/sysconfig/network-scripts/ifcfg-bond0
BONDING_OPTS="mode=active-backup miimon=100 primary=eth01"
 grep "Primary Slave" /proc/net/bonding/bond0
Primary Slave: eth01 (primary_reselect always)

 echo "" > /sys/class/net/bond0/bonding/primary
 grep "Primary Slave" /proc/net/bonding/bond0
Primary Slave: None

 sed -i -e 's/primary=eth01//' /etc/sysconfig/network-scripts/ifcfg-bond0
 grep OPTS /etc/sysconfig/network-scripts/ifcfg-bond
BONDING_OPTS="mode=active-backup miimon=100 "
 ifdown bond0 && ifup bond0

without patch:
 grep "Primary Slave" /proc/net/bonding/bond0
Primary Slave: eth01 (primary_reselect always)

with patch:
 grep "Primary Slave" /proc/net/bonding/bond0
Primary Slave: None

Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Milos Vyletel <milos.vyletel@sde.cz>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-29 15:43:35 -05:00
..
bond_3ad.c bonding: drop_monitor aware 2012-06-13 16:00:26 -07:00
bond_3ad.h bonding: remove packet cloning in recv_probe() 2012-06-12 18:51:09 -07:00
bond_alb.c bonding: delete migrated IP addresses from the rlb hash table 2012-11-30 12:07:27 -05:00
bond_alb.h bonding: delete migrated IP addresses from the rlb hash table 2012-11-30 12:07:27 -05:00
bond_debugfs.c bonding: delete migrated IP addresses from the rlb hash table 2012-11-30 12:07:27 -05:00
bond_main.c bonding: do not cancel works in bond_uninit() 2012-12-14 13:14:07 -05:00
bond_procfs.c bonding: show all the link status of slaves 2012-06-17 16:23:54 -07:00
bond_sysfs.c bonding: unset primary slave via sysfs 2013-01-29 15:43:35 -05:00
bonding.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
Makefile bonding, ipv4, ipv6, vlan: Handle NETDEV_BONDING_FAILOVER like NETDEV_NOTIFY_PEERS 2011-04-17 23:36:03 -07:00