linux-kernel - Re: [PATCH v11 4/4] qrwlock: Use the mcs_spinlock helper functions for MCS queuing

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Date:	Fri, 24 Jan 2014 23:30:52 -0500
From:	Waiman Long <waiman.long@...com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.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>, "" <aswin@...com>,
	Scott J Norton <scott.norton@...com>
Subject: Re: [PATCH v11 4/4] qrwlock: Use the mcs_spinlock helper functions
 for MCS queuing

On 01/24/2014 03:26 AM, Peter Zijlstra wrote:
> On Thu, Jan 23, 2014 at 11:28:51PM -0500, Waiman Long wrote:
>> There is a pending MCS lock patch series that adds generic MCS lock
>> helper functions to do MCS-style locking. This patch will enable
>> the queue rwlock to use that generic MCS lock/unlock primitives for
>> internal queuing. This patch should only be merged after the merging
>> of that generic MCS locking patch.
> I would still very much like this patch to be merged into the first. It
> saves having to review all the code removed again.

I will merge it to the first one once the once the MCS patches are in 
the mainline or the tip branch.

-Longman
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