netdev - Re: [PATCH net-next v2 0/4] bonding work-queues, try

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Message-Id: <20150321.223637.2214520794734249959.davem@davemloft.net>
Date:	Sat, 21 Mar 2015 22:36:37 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	maze@...gle.com
Cc:	maheshb@...gle.com, j.vosburgh@...il.com, andy@...yhouse.net,
	vfalico@...il.com, nikolay@...hat.com, netdev@...r.kernel.org,
	edumazet@...gle.com
Subject: Re: [PATCH net-next v2 0/4] bonding work-queues, try_rtnl() &
 notifications

From: Maciej Żenczykowski <maze@...gle.com>
Date: Sat, 21 Mar 2015 19:23:51 -0700

>> Someone has to do the work, and if the rtnl-owner does it we do not
>> incur all of the overhead the resubmission entails.
> 
> Are you suggesting:
> - adding a global queue of (function pointer, long arg)
> - changing rtnl_unlock to iterate through the queue calling
> function(arg) before it actually releases the rtnl lock
> ?

Something like that.

> I guess at that point you could even have a generic method
> 
> void asynch_call_under_rtnl(function, arg) {
>   rtnl_callback_add_to_queue(function,arg)
>   if (rtnl_try_lock())
>     rtnl_unlock();
> }

Right.
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