netdev - Re: [PATCH] net: allow netdev_wait

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Date:	Mon, 09 Aug 2010 12:59:14 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Benjamin LaHaise <bcrl@...et.ca>
Cc:	Ben Greear <greearb@...delatech.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Octavian Purdila <opurdila@...acom.com>,
	netdev@...r.kernel.org, Cosmin Ratiu <cratiu@...acom.com>
Subject: Re: [PATCH] net: allow netdev_wait_allrefs() to run faster

Benjamin LaHaise <bcrl@...et.ca> writes:

> Hello Ben,
>
> On Mon, Aug 09, 2010 at 10:23:37AM -0700, Ben Greear wrote:
>> I was just comparing my out-of-tree patch set to .35, and it appears
>> little or none of the patches discussed in this thread are in the
>> upstream kernel yet.

The network device deletion batching code has gone in, which is
a big help, as have some dev_put deletions, so we hit that 250ms
delay less often.  

> I was waiting on Eric's sysfs changes for namespaces to settle down, but 
> ended up getting busy on other things.  I guess now is a good time to pick 
> this back up and try to merge my changes for improving interface scaling.  
> I'll send out a new version of the patches sometime in the next couple of 
> days.  I'm also about to make a new Babylon release as well, I just need 
> to write some more documentation. :-/

sysfs feature wise has now settled down, and the regressions have all
been stamped out so now should be a good time to work on scaling.

I still have some preliminary patches in my tree, that I will dig up
as time goes by.

Eric
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