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xen-devel
[Xen-devel] [PATCH RFC V5 04/11] xen: defer spinlock setup until boot CP
To: |
"H. Peter Anvin" <hpa@xxxxxxxxx> |
Subject: |
[Xen-devel] [PATCH RFC V5 04/11] xen: defer spinlock setup until boot CPU setup |
From: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
Date: |
Wed, 12 Oct 2011 17:51:36 -0700 |
Cc: |
Marcelo Tosatti <mtosatti@xxxxxxxxxx>, Nick Piggin <npiggin@xxxxxxxxx>, KVM <kvm@xxxxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Andi Kleen <andi@xxxxxxxxxxxxxx>, Avi Kivity <avi@xxxxxxxxxx>, Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
Delivery-date: |
Wed, 12 Oct 2011 17:52:34 -0700 |
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www-data@xxxxxxxxxxxxxxxxxxx |
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<cover.1318466916.git.jeremy.fitzhardinge@xxxxxxxxxx> |
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From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
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.fitzhardinge@xxxxxxxxxx>
---
arch/x86/xen/smp.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index e79dbb9..4dec905 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -200,6 +200,7 @@ 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)
@@ -513,7 +514,6 @@ 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)
--
1.7.6.4
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- [Xen-devel] [PATCH RFC V5 00/11] Paravirtualized ticketlocks, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 04/11] xen: defer spinlock setup until boot CPU setup,
Jeremy Fitzhardinge <=
- [Xen-devel] [PATCH RFC V5 02/11] x86/ticketlock: don't inline _spin_unlock when using paravirt spinlocks, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 01/11] x86/spinlock: replace pv spinlocks with pv ticketlocks, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 03/11] x86/ticketlock: collapse a layer of functions, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 06/11] xen/pvticketlocks: add xen_nopvspin parameter to disable xen pv ticketlocks, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 09/11] x86/ticketlock: add slowpath logic, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 05/11] xen/pvticketlock: Xen implementation for PV ticket locks, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 08/11] x86/pvticketlock: when paravirtualizing ticket locks, increment by 2, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 10/11] xen/pvticketlock: allow interrupts to be enabled while blocking, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 11/11] xen: enable PV ticketlocks on HVM Xen, Jeremy Fitzhardinge
- [Xen-devel] [PATCH RFC V5 07/11] x86/pvticketlock: use callee-save for lock_spinning, Jeremy Fitzhardinge
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