Ok, I will resend the patch with your suggestions.

Vincent

On Tue, Sep 24, 2013 at 12:28 PM, David Miller <[email protected]> wrote:
> From: Vincent Li <[email protected]>
> Date: Tue, 24 Sep 2013 11:11:21 -0700
>
>> the current behavior is when an IP is added to an interface, the primary
>> or secondary attributes is depending on the order of ip added to the 
>> interface
>> the first IP will be primary and second, third,... or alias IP will be 
>> secondary
>> if the IP subnet matches
>>
>> this patch add the flexiblity to allow user to specify an argument 'primary' 
>> or 'secondary'
>> (use 'ip addr add ip/mask primary|secondary dev ethX ' from iproute2 for 
>> example) to specify
>> an IP address to be  primary or secondary.
>>
>> the reason for this patch is that we have a multi blade cluster platform 
>> sharing 'floating management ip'
>> and also that each blade has its own management ip on the management 
>> interface, so whichever blade in the
>> cluster becomes primary blade, the 'floating mangaement ip' follows it, and 
>> we want any of our traffic
>> originated from the primary blade source from the 'floating management ip' 
>> for consistency. but in this
>> case, since the local blade management ip is always the primary ip on the 
>> mangaement interface and 'floating
>> management ip' is always secondary, kernel always choose the primary ip as 
>> source ip address. thus we would
>> like to add the flexibility in kernel to allow us to specify which ip to be 
>> primary or secondary.
>>
>> Signed-off-by: Vincent Li <[email protected]>
>
> When submitting a patch, please:
>
> 1) Specify an appropriate prefix for your subject line, indicating the
>    subsystem.  "ipv4: " might be appropriate here.
>
> 2) Format your commit message so that lines do not exceed 80 columns.
>    People will read using ASCII text based tools in 80 column
>    terminals.
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