Subject: Re: [patch 0/1][RFC] add a private field to the sock structure

From: Daniel Lezcano <[email-masked]>
Date: Wed, 29 Aug 2007 23:15:31 +0200

Arnaldo Carvalho de Melo wrote:
> Em Wed, Aug 29, 2007 at 11:23:16AM -0700, David Miller escreveu:
>> From: [email-masked]
>> Date: Wed, 29 Aug 2007 18:41:14 +0200
>>
>>> When a socket is created it is sometime useful to store a specific information
>>> for this socket.
>>>  
>>> This information can be for examples: 
>>> 	* a creation time
>>> 	* a pid
>>> 	* a uid/gid
>>> 	* a container identifier
>>> 	* a pointer to a more specific structure
>>> 	* ...
>>>
>>> The following patch is a proposition to add a private anonymous pointer
>>> field to the common part of the sock structure.
>> We got rid of the private field a long time ago because not only
>> is it not needed, it tends to get abused.
> 
> Nah, it still there, sk_protinfo, its just ax25 that uses it
> (nudge(Ralf)). How do we state that a struct field is deprecated and
> will be removed soon(tm)?
> 
> There is another, sk_user_data, that is used only by the rpc, pppol2tp,
> iscsi, ncpfs, smbfs and dlm guys, see? We need a deprecate flag for
> sk_protinfo, if not people will use it! :-)

Thank you for your feedbacks. I will play with the sk_user_data.

Is there a chance to have this field in the timewait sockets ? :)

Regards
	--Daniel