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Date: Mon, 03 Feb 2014 14:21:40 +0530
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Organization: IBM
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To: Waiman Long <Waiman.Long@hp.com>
CC: Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Arnd Bergmann <arnd@arndb.de>,
        linux-arch@vger.kernel.org, x86@kernel.org,
        linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michel Lespinasse <walken@google.com>,
        Andi Kleen <andi@firstfloor.org>, Rik van Riel <riel@redhat.com>,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        George Spelvin <linux@horizon.com>,
        Tim Chen <tim.c.chen@linux.intel.com>,
        Daniel J Blueman <daniel@numascale.com>,
        Alexander Fyodorov <halcy@yandex.ru>,
        Aswin Chandramouleeswaran <aswin@hp.com>,
        Scott J Norton <scott.norton@hp.com>,
        Thavatchai Makphaibulchoke <thavatchai.makpahibulchoke@hp.com>
Subject: Re: [PATCH v3 1/2] qspinlock: Introducing a 4-byte queue spinlock
 implementation
References: <1390933151-1797-1-git-send-email-Waiman.Long@hp.com> <1390933151-1797-2-git-send-email-Waiman.Long@hp.com>
In-Reply-To: <1390933151-1797-2-git-send-email-Waiman.Long@hp.com>
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On 01/28/2014 11:49 PM, Waiman Long wrote:
> +#endif /* __ASM_GENERIC_QSPINLOCK_H */
> diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
> index d2b32ac..f185584 100644
> --- a/kernel/Kconfig.locks
> +++ b/kernel/Kconfig.locks
> @@ -223,3 +223,10 @@ endif
>   config MUTEX_SPIN_ON_OWNER
>   	def_bool y
>   	depends on SMP && !DEBUG_MUTEXES
> +
> +config ARCH_USE_QUEUE_SPINLOCK
> +	bool
> +
> +config QUEUE_SPINLOCK
> +	def_bool y if ARCH_USE_QUEUE_SPINLOCK
> +	depends on SMP && !PARAVIRT_SPINLOCKS

This should have been !CONFIG_PARAVIRT instead of !PARAVIRT_SPINLOCKS ?

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