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From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
To: gleb@redhat.com, mingo@redhat.com, jeremy@goop.org,
	x86@kernel.org, konrad.wilk@oracle.com, hpa@zytor.com,
	pbonzini@redhat.com
Cc: gregkh@suse.de, 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,
	linux-kernel@vger.kernel.org, srivatsa.vaddagiri@gmail.com,
	attilio.rao@citrix.com, torvalds@linux-foundation.org
Subject: [PATCH RFC V11 4/18]  xen: Defer spinlock setup until boot CPU setup
Date: Mon, 22 Jul 2013 11:47:31 +0530	[thread overview]
Message-ID: <20130722061731.24737.61222.sendpatchset@codeblue> (raw)
In-Reply-To: <20130722061631.24737.75508.sendpatchset@codeblue>

xen: Defer spinlock setup until boot CPU setup

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>
---
 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 c1367b2..c3c9bcf 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)

  parent reply	other threads:[~2013-07-22  6:17 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-22  6:16 [PATCH RFC V11 0/18] Paravirtualized ticket spinlocks Raghavendra K T
2013-07-22  6:16 ` [PATCH RFC V11 1/18] x86/spinlock: Replace pv spinlocks with pv ticketlocks Raghavendra K T
2013-07-22  6:17 ` [PATCH RFC V11 2/18] x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks Raghavendra K T
2013-07-22  6:17 ` [PATCH RFC V11 3/18] x86/ticketlock: Collapse a layer of functions Raghavendra K T
2013-07-22  6:17 ` Raghavendra K T [this message]
2013-07-22  6:17 ` [PATCH RFC V11 5/18] xen/pvticketlock: Xen implementation for PV ticket locks Raghavendra K T
2013-07-22  6:17 ` [PATCH RFC V11 6/18] xen/pvticketlocks: Add xen_nopvspin parameter to disable xen pv ticketlocks Raghavendra K T
2013-07-22  6:18 ` [PATCH RFC V11 7/18] x86/pvticketlock: Use callee-save for lock_spinning Raghavendra K T
2013-07-22  6:18 ` [PATCH RFC V11 8/18] x86/pvticketlock: When paravirtualizing ticket locks, increment by 2 Raghavendra K T
2013-07-22  6:18 ` [PATCH RFC V11 9/18] jump_label: Split out rate limiting from jump_label.h Raghavendra K T
2013-07-22  6:18 ` [PATCH RFC V11 10/18] x86/ticketlock: Add slowpath logic Raghavendra K T
2013-07-22  6:19 ` [PATCH RFC V11 11/18] xen/pvticketlock: Allow interrupts to be enabled while blocking Raghavendra K T
2013-07-22  6:19 ` [PATCH RFC V11 12/18] kvm hypervisor : Add a hypercall to KVM hypervisor to support pv-ticketlocks Raghavendra K T
2013-07-22  6:19 ` [PATCH RFC V11 13/18] kvm : Fold pv_unhalt flag into GET_MP_STATE ioctl to aid migration Raghavendra K T
2013-07-22  6:20 ` [PATCH RFC V11 14/18] kvm guest : Add configuration support to enable debug information for KVM Guests Raghavendra K T
2013-07-22  6:20 ` [PATCH RFC V11 15/18] kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor Raghavendra K T
2013-07-23 15:07   ` Gleb Natapov
2013-07-24  9:24     ` [PATCH RESEND " Raghavendra K T
2013-07-24  9:45     ` [PATCH " Raghavendra K T
2013-07-24 10:39       ` Gleb Natapov
2013-07-24 12:00         ` Raghavendra K T
2013-07-24 12:06           ` Gleb Natapov
2013-07-24 12:36             ` Raghavendra K T
2013-07-25  9:17               ` Raghavendra K T
2013-07-25  9:15                 ` Gleb Natapov
2013-07-25  9:38                   ` Raghavendra K T
2013-07-30 16:43                     ` Raghavendra K T
2013-07-31  6:24                       ` Gleb Natapov
2013-08-01  7:38                         ` Raghavendra K T
2013-08-01  7:45                           ` Gleb Natapov
2013-08-01  9:04                             ` Raghavendra K T
2013-08-02  3:22                               ` Raghavendra K T
2013-08-02  9:23                                 ` Ingo Molnar
2013-08-02  9:44                                   ` Raghavendra K T
2013-08-02  9:25                           ` Ingo Molnar
2013-08-02  9:54                             ` Gleb Natapov
2013-08-02 10:57                               ` Raghavendra K T
2013-08-05  9:46                               ` Ingo Molnar
2013-08-05 10:42                                 ` Raghavendra K T
     [not found]                                 ` <20130805095901.GL2258@redhat.com>
2013-08-05 13:52                                   ` Ingo Molnar
2013-08-05 14:05                                     ` Paolo Bonzini
2013-08-05 14:39                                       ` Raghavendra K T
2013-08-05 14:45                                         ` Paolo Bonzini
2013-08-05 15:37                                 ` Konrad Rzeszutek Wilk
2013-07-22  6:20 ` [PATCH RFC V11 16/18] kvm hypervisor : Simplify kvm_for_each_vcpu with kvm_irq_delivery_to_apic Raghavendra K T
2013-07-22  6:20 ` [PATCH RFC V11 17/18] Documentation/kvm : Add documentation on Hypercalls and features used for PV spinlock Raghavendra K T
2013-07-22  6:20 ` [PATCH RFC V11 18/18] kvm hypervisor: Add directed yield in vcpu block path Raghavendra K T
2013-07-22 19:36 ` [PATCH RFC V11 0/18] Paravirtualized ticket spinlocks Konrad Rzeszutek Wilk
2013-07-23  2:50   ` Raghavendra K T
2013-08-05 22:50 ` H. Peter Anvin
2013-08-06  2:50   ` Raghavendra K T

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