linux-kernel - Re: [PATCH v4 0/3] qspinlock: Introducing a 4-byte queue spinlock

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Message-ID: <530C0FDF.4000506@hp.com>
Date:	Mon, 24 Feb 2014 22:37:03 -0500
From:	Waiman Long <waiman.long@...com>
To:	Ingo Molnar <mingo@...nel.org>
CC:	Peter Zijlstra <peterz@...radead.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, Arnd Bergmann <arnd@...db.de>,
	linux-arch@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michel Lespinasse <walken@...gle.com>,
	Andi Kleen <andi@...stfloor.org>,
	Rik van Riel <riel@...hat.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	George Spelvin <linux@...izon.com>,
	Tim Chen <tim.c.chen@...ux.intel.com>,
	Daniel J Blueman <daniel@...ascale.com>,
	Alexander Fyodorov <halcy@...dex.ru>,
	Aswin Chandramouleeswaran <aswin@...com>,
	Scott J Norton <scott.norton@...com>,
	Thavatchai Makphaibulchoke <thavatchai.makpahibulchoke@...com>
Subject: Re: [PATCH v4 0/3] qspinlock: Introducing a 4-byte queue spinlock

On 02/22/2014 11:56 AM, Ingo Molnar wrote:
> * Peter Zijlstra<peterz@...radead.org>  wrote:
>
>> On Mon, Feb 17, 2014 at 02:47:03PM -0800, H. Peter Anvin wrote:
>>> This is starting to look good, so I have pulled it into
>>> tip:x86/spinlocks to start give it some testing mileage.
>> Its still atrociously ugly code please drop it.
> Fair enough - I've excluded it from tip:master for now, until the
> uglies get resolved.
>
> Waiman: please address PeterZ's feedback.
>
> Thanks,
>
> 	Ingo

I am trying to address PeterZ's feedback while adding 
para-virtualization support right now. I will have a new version ready 
sometime this week.

-Longman
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