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Date: Wed, 2 Apr 2014 10:39:32 -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>, Aswin Chandramouleeswaran <aswin@...com>, Scott J Norton <scott.norton@...com>, Chegu Vinod <chegu_vinod@...com> Subject: Re: [PATCH v8 10/10] pvqspinlock, x86: Enable qspinlock PV support for XEN > diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks > index a70fdeb..451e392 100644 > --- a/kernel/Kconfig.locks > +++ b/kernel/Kconfig.locks > @@ -229,4 +229,4 @@ config ARCH_USE_QUEUE_SPINLOCK > > config QUEUE_SPINLOCK > def_bool y if ARCH_USE_QUEUE_SPINLOCK > - depends on SMP && (!PARAVIRT_SPINLOCKS || !XEN) > + depends on SMP If I read this correctly that means you cannot select any more the old ticketlocks? As in, if you select CONFIG_PARAVIRT on X86 it will automatically select ARCH_USE_QUEUE_SPINLOCK which will then enable this by default? Should the 'def_bool' be selectable? > -- > 1.7.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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