Extend procfs status for bonded links to show "backup" and "inactive"flags

[Jeroen van Bemmel]

Hi,

bond_info_show_slave in /drivers/net/bonding/bond_procfs.c currently 
does not show all the information that is relevant to determine whether 
a given slave is used for network traffic or not. In certain 
active-backup setups, this means one can not easily tell what's happening.

An example patch to fix this:

diff --git a/drivers/net/bonding/bond_procfs.c 
b/drivers/net/bonding/bond_procfs.c
index 3cea38d..48ac2a4 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -169,6 +169,8 @@ static void bond_info_show_slave(struct seq_file *seq,

        seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name);
        seq_printf(seq, "MII Status: %s\n", 
bond_slave_link_status(slave->link));
+       seq_printf(seq, "Bond Status: backup=%d inactive=%d\n",
+               slave->backup, slave->inactive );
        if (slave->speed == SPEED_UNKNOWN)
                seq_printf(seq, "Speed: %s\n", "Unknown");
        else

Thanks,
Jeroen van Bemmel
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