netdev - Re: [PATCH net-next 1/4] bonding: update the primary when slave name changed

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Date:	Fri, 10 Jan 2014 19:55:50 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	Veaceslav Falico <vfalico@...hat.com>
CC:	Jay Vosburgh <fubar@...ibm.com>,
	"David S. Miller" <davem@...emloft.net>,
	Netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 1/4] bonding: update the primary when slave name
 changed

On 2014/1/10 19:11, Veaceslav Falico wrote:
> On Fri, Jan 10, 2014 at 07:05:34PM +0800, Ding Tianhong wrote:
>> On 2014/1/10 15:44, Veaceslav Falico wrote:
>>> If it's not the primray
>>> slave, and we don't have one - select it as a new primary and, again, see
>>> if we need to select a new active slave.
>>
>> I don't think so , I think if it is not the primary slave and we don't have one,
>> no need to do anything, just a normal slave change its name.
> 
> If primary == "my_eth0", you have 2 slaves - "eth0" and "eth1", thus null
> primary_slave, and rename eth0 to my_eth0 - then you need to set
> primary_slave to my_eth0.
> 
> If primary == "my_eth0", you have 2 slaves - "my_eth0" and "eth1", thus
> primary_slave == dev with name "my_eth0", and rename "my_eth0" to "eth0" -
> then you must set primary_slave to NULL.
> 
> And after either of these you must see if you need to re-select the active
> slave, as it might have been forced by the primary_slave, which has been
> modified.
> 
> You might also want to add some pr_info() about adding/removing
> primary_slave, as the user to be aware.
> 

Ok thanks.

Regards
Ding

> 


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