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From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
To: mingo@redhat.com, hpa@zytor.com, x86@kernel.org, jeremy@goop.org,
	konrad.wilk@oracle.com, gleb@redhat.com, pbonzini@redhat.com
Cc: kvm@vger.kernel.org, linux-doc@vger.kernel.org,
	peterz@infradead.org, drjones@redhat.com,
	virtualization@lists.linux-foundation.org, andi@firstfloor.org,
	xen-devel@lists.xensource.com,
	Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
	habanero@linux.vnet.ibm.com, riel@redhat.com,
	stefano.stabellini@eu.citrix.com, ouyang@cs.pitt.edu,
	avi.kivity@gmail.com, tglx@linutronix.de, chegu_vinod@hp.com,
	gregkh@suse.de, linux-kernel@vger.kernel.org,
	srivatsa.vaddagiri@gmail.com, attilio.rao@citrix.com,
	torvalds@linux-foundation.org
Subject: [PATCH V13 04/14] xen: Defer spinlock setup until boot CPU setup
Date: Fri,  9 Aug 2013 19:51:52 +0530	[thread overview]
Message-ID: <1376058122-8248-5-git-send-email-raghavendra.kt@linux.vnet.ibm.com> (raw)
In-Reply-To: <1376058122-8248-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com>

From: Jeremy Fitzhardinge <jeremy@goop.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@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.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

  parent reply	other threads:[~2013-08-09 14:21 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-09 14:21 [PATCH V13 00/14] Paravirtualized ticket spinlocks Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 01/14] x86/spinlock: Replace pv spinlocks with pv ticketlocks Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 02/14] x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 03/14] x86/ticketlock: Collapse a layer of functions Raghavendra K T
2013-08-09 14:21 ` Raghavendra K T [this message]
2013-08-09 14:21 ` [PATCH V13 05/14] xen/pvticketlock: Xen implementation for PV ticket locks Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 06/14] xen/pvticketlocks: Add xen_nopvspin parameter to disable xen pv ticketlocks Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 07/14] x86/pvticketlock: Use callee-save for lock_spinning Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 08/14] x86/pvticketlock: When paravirtualizing ticket locks, increment by 2 Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 09/14] jump_label: Split jumplabel ratelimit Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 10/14] x86/ticketlock: Add slowpath logic Raghavendra K T
2013-08-09 14:21 ` [PATCH V13 11/14] xen/pvticketlock: Allow interrupts to be enabled while blocking Raghavendra K T
2013-08-09 14:22 ` [PATCH V13 12/14] kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi Raghavendra K T
2013-08-09 14:22 ` [PATCH V13 13/14] kvm guest : Add configuration support to enable debug information for KVM Guests Raghavendra K T
2013-08-09 14:22 ` [PATCH V13 14/14] kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor Raghavendra K T
2013-08-10 19:38   ` [PATCH RESEND " Raghavendra K T
2013-08-13 16:42     ` H. Peter Anvin
2013-08-13 16:55       ` Ingo Molnar
2013-08-13 20:02         ` [PATCH delta " Raghavendra K T
2013-08-13 20:00           ` Jeremy Fitzhardinge
2013-08-13 20:27             ` Raghavendra K T
2013-08-14  9:50           ` Raghavendra K T
2013-08-11  5:35   ` [PATCH RESEND " Raghavendra K T
     [not found] <1376057939-7787-1-git-send-email-y>
2013-08-09 14:18 ` [PATCH V13 04/14] xen: Defer spinlock setup until boot CPU setup y

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