linux-kernel - Re: [PATCH v9 00/19] qspinlock: a 4-byte queue spinlock with PV support

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Message-ID: <20140417172246.GA9849@localhost.localdomain>
Date:	Thu, 17 Apr 2014 13:23:49 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Waiman Long <Waiman.Long@...com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-arch@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org,
	xen-devel@...ts.xenproject.org, kvm@...r.kernel.org,
	Paolo Bonzini <paolo.bonzini@...il.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Rik van Riel <riel@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>,
	David Vrabel <david.vrabel@...rix.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Gleb Natapov <gleb@...hat.com>,
	Scott J Norton <scott.norton@...com>,
	Chegu Vinod <chegu_vinod@...com>
Subject: Re: [PATCH v9 00/19] qspinlock: a 4-byte queue spinlock with PV
 support

On Thu, Apr 17, 2014 at 11:03:52AM -0400, Waiman Long wrote:
> v8->v9:
>   - Integrate PeterZ's version of the queue spinlock patch with some
>     modification:
>     http://lkml.kernel.org/r/20140310154236.038181843@infradead.org
>   - Break the more complex patches into smaller ones to ease review effort.
>   - Fix a racing condition in the PV qspinlock code.

I am not seeing anything mentioning that the overcommit scenario
for KVM and Xen had been fixed. Or was the 'racing condition' said
issue?

Thanks.
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