linux-kernel - [PATCH V13 04/14] xen: Defer spinlock setup until boot CPU setup

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Date:	Fri,  9 Aug 2013 19:51:52 +0530
From:	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
To:	<mingo@...hat.com>, <hpa@...or.com>, <x86@...nel.org>,
	<jeremy@...p.org>, <konrad.wilk@...cle.com>, <gleb@...hat.com>,
	<pbonzini@...hat.com>
Cc:	<gregkh@...e.de>, <peterz@...radead.org>, <tglx@...utronix.de>,
	<agraf@...e.de>, <riel@...hat.com>, <avi.kivity@...il.com>,
	<habanero@...ux.vnet.ibm.com>, <chegu_vinod@...com>,
	<ouyang@...pitt.edu>, <drjones@...hat.com>,
	<attilio.rao@...rix.com>, linux-doc@...r.kernel.org,
	<torvalds@...ux-foundation.org>, <linux-kernel@...r.kernel.org>,
	<kvm@...r.kernel.org>, <andi@...stfloor.org>,
	<xen-devel@...ts.xensource.com>,
	<virtualization@...ts.linux-foundation.org>,
	<stefano.stabellini@...citrix.com>, <mtosatti@...hat.com>,
	<srivatsa.vaddagiri@...il.com>,
	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
Subject: [PATCH V13 04/14] xen: Defer spinlock setup until boot CPU setup

From: Jeremy Fitzhardinge <jeremy@...p.org>

There's no need to do it at very early init, and doing it there
makes it impossible to use the jump_label machinery.

Signed-off-by: Jeremy Fitzhardinge <jeremy@...p.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Signed-off-by: Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/xen/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index ca92754..3b52d80 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -279,6 +279,7 @@ static void __init xen_smp_prepare_boot_cpu(void)
 
 	xen_filter_cpu_maps();
 	xen_setup_vcpu_info_placement();
+	xen_init_spinlocks();
 }
 
 static void __init xen_smp_prepare_cpus(unsigned int max_cpus)
@@ -680,7 +681,6 @@ void __init xen_smp_init(void)
 {
 	smp_ops = xen_smp_ops;
 	xen_fill_possible_map();
-	xen_init_spinlocks();
 }
 
 static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus)
-- 
1.7.11.7

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