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Date:	Fri, 8 Jun 2007 22:37:35 +1000
From:	Herbert Xu <>
To:	jamal <>
Cc:	Sridhar Samudrala <>,
	David Miller <>,,,,,,
Subject: Re: [PATCH] NET: Multiqueue network device support.

On Fri, Jun 08, 2007 at 07:34:57AM -0400, jamal wrote:
> On Fri, 2007-08-06 at 20:39 +1000, Herbert Xu wrote:
> > It would guard against the poll routine which would acquire this lock
> > when cleaning the TX ring.
> Ok, then i suppose we can conclude it is a bug on e1000 (holds tx_lock
> on tx side and adapter queue lock on rx). Adding that lock will
> certainly bring down the performance numbers on a send/recv profile.
> The bizare thing is things run just fine even under the heavy tx/rx
> traffic i was testing under. I guess i didnt hit hard enough.

Hmm I wasn't describing how it works now.  I'm talking about how it
would work if we removed LLTX and replaced the private tx_lock with

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