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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  V12 4/14] xen: Defer spinlock setup until boot CPU setup
Date: Tue, 06 Aug 2013 17:11:45 +0530	[thread overview]
Message-ID: <20130806114145.20643.7527.sendpatchset@codeblue.in.ibm.com> (raw)
In-Reply-To: <20130806114020.20643.57235.sendpatchset@codeblue.in.ibm.com>

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>
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)

WARNING: multiple messages have this Message-ID (diff)
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  V12 4/14] xen: Defer spinlock setup until boot CPU setup
Date: Tue, 06 Aug 2013 17:11:45 +0530	[thread overview]
Message-ID: <20130806114145.20643.7527.sendpatchset@codeblue.in.ibm.com> (raw)
In-Reply-To: <20130806114020.20643.57235.sendpatchset@codeblue.in.ibm.com>

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>
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)

WARNING: multiple messages have this Message-ID (diff)
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: linux-doc@vger.kernel.org, <habanero@linux.vnet.ibm.com>,
	Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
	<xen-devel@lists.xensource.com>, <peterz@infradead.org>,
	<mtosatti@redhat.com>, <stefano.stabellini@eu.citrix.com>,
	<andi@firstfloor.org>, <attilio.rao@citrix.com>,
	<ouyang@cs.pitt.edu>, <gregkh@suse.de>, <agraf@suse.de>,
	<chegu_vinod@hp.com>, <torvalds@linux-foundation.org>,
	<avi.kivity@gmail.com>, <tglx@linutronix.de>,
	<kvm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<riel@redhat.com>, <drjones@redhat.com>,
	<virtualization@lists.linux-foundation.org>,
	<srivatsa.vaddagiri@gmail.com>
Subject: [PATCH  V12 4/14] xen: Defer spinlock setup until boot CPU setup
Date: Tue, 06 Aug 2013 17:11:45 +0530	[thread overview]
Message-ID: <20130806114145.20643.7527.sendpatchset@codeblue.in.ibm.com> (raw)
In-Reply-To: <20130806114020.20643.57235.sendpatchset@codeblue.in.ibm.com>

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>
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)


  parent reply	other threads:[~2013-08-06 11:41 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-06 11:40 [PATCH V12 0/14] Paravirtualized ticket spinlocks Raghavendra K T
2013-08-06 11:40 ` Raghavendra K T
2013-08-06 11:40 ` [PATCH V12 1/14] x86/spinlock: Replace pv spinlocks with pv ticketlocks Raghavendra K T
2013-08-06 11:40   ` Raghavendra K T
2013-08-06 11:40   ` Raghavendra K T
2013-08-08 23:19   ` [tip:x86/spinlocks] x86, spinlock: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:41 ` [PATCH V12 2/14] x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks Raghavendra K T
2013-08-06 11:41   ` Raghavendra K T
2013-08-06 11:41   ` Raghavendra K T
2013-08-08 23:19   ` [tip:x86/spinlocks] x86, ticketlock: Don' t " tip-bot for Raghavendra K T
2013-08-06 11:41 ` [PATCH V12 3/14] x86/ticketlock: Collapse a layer of functions Raghavendra K T
2013-08-06 11:41   ` Raghavendra K T
2013-08-06 11:41   ` Raghavendra K T
2013-08-08 23:19   ` [tip:x86/spinlocks] x86, ticketlock: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:41 ` Raghavendra K T [this message]
2013-08-06 11:41   ` [PATCH V12 4/14] xen: Defer spinlock setup until boot CPU setup Raghavendra K T
2013-08-06 11:41   ` Raghavendra K T
2013-08-08 23:19   ` [tip:x86/spinlocks] " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:42 ` [PATCH V12 5/14] xen/pvticketlock: Xen implementation for PV ticket locks Raghavendra K T
2013-08-06 11:42   ` Raghavendra K T
2013-08-06 11:42   ` Raghavendra K T
2013-08-08 23:19   ` [tip:x86/spinlocks] xen, pvticketlock: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:42 ` [PATCH V12 6/14] xen/pvticketlocks: Add xen_nopvspin parameter to disable xen pv ticketlocks Raghavendra K T
2013-08-06 11:42   ` Raghavendra K T
2013-08-06 11:42   ` Raghavendra K T
2013-08-08 23:19   ` [tip:x86/spinlocks] xen, pvticketlocks: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:42 ` [PATCH V12 7/14] x86/pvticketlock: Use callee-save for lock_spinning Raghavendra K T
2013-08-06 11:42   ` Raghavendra K T
2013-08-06 11:42   ` Raghavendra K T
2013-08-08 23:20   ` [tip:x86/spinlocks] x86, pvticketlock: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:43 ` [PATCH V12 8/14] x86/pvticketlock: When paravirtualizing ticket locks, increment by 2 Raghavendra K T
2013-08-06 11:43   ` Raghavendra K T
2013-08-06 11:43   ` Raghavendra K T
2013-08-08 23:20   ` [tip:x86/spinlocks] x86, pvticketlock: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:43 ` [PATCH V12 9/14] jump_label: Split out rate limiting from jump_label.h Raghavendra K T
2013-08-06 11:43   ` Raghavendra K T
2013-08-06 11:43   ` Raghavendra K T
2013-08-08 23:20   ` [tip:x86/spinlocks] " tip-bot for Andrew Jones
2013-08-06 11:43 ` [PATCH V12 10/14] x86/ticketlock: Add slowpath logic Raghavendra K T
2013-08-06 11:43   ` Raghavendra K T
2013-08-06 11:43   ` Raghavendra K T
2013-08-08 23:20   ` [tip:x86/spinlocks] x86, ticketlock: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:44 ` [PATCH V12 11/14] xen/pvticketlock: Allow interrupts to be enabled while blocking Raghavendra K T
2013-08-06 11:44   ` Raghavendra K T
2013-08-06 11:44   ` Raghavendra K T
2013-08-08 23:20   ` [tip:x86/spinlocks] xen, pvticketlock: " tip-bot for Jeremy Fitzhardinge
2013-08-06 11:44 ` [PATCH V12 12/14] kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi Raghavendra K T
2013-08-06 11:44   ` Raghavendra K T
2013-08-06 11:44   ` Raghavendra K T
2013-08-08 23:21   ` [tip:x86/spinlocks] " tip-bot for Raghavendra K T
2013-08-06 11:45 ` [PATCH V12 13/14] kvm guest : Add configuration support to enable debug information for KVM Guests Raghavendra K T
2013-08-06 11:45   ` Raghavendra K T
2013-08-06 11:45   ` Raghavendra K T
2013-08-08 23:21   ` [tip:x86/spinlocks] " tip-bot for Srivatsa Vaddagiri
2013-08-06 11:45 ` [PATCH V12 14/14] kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor Raghavendra K T
2013-08-06 11:45   ` Raghavendra K T
2013-08-06 11:45   ` Raghavendra K T
2013-08-08 23:21   ` [tip:x86/spinlocks] " tip-bot for Srivatsa Vaddagiri
2013-08-06 21:01 ` [PATCH V12 0/14] Paravirtualized ticket spinlocks H. Peter Anvin
2013-08-06 21:01   ` H. Peter Anvin
2013-08-07  2:54   ` Raghavendra K T
2013-08-07  2:54     ` Raghavendra K T
2013-08-07  4:48     ` H. Peter Anvin
2013-08-07  4:48       ` H. Peter Anvin
2013-08-07  6:45       ` Raghavendra K T
2013-08-07  6:45         ` Raghavendra K T
2013-08-08  0:50         ` Konrad Rzeszutek Wilk
2013-08-08  0:50           ` Konrad Rzeszutek Wilk
2013-08-08  0:50           ` Konrad Rzeszutek Wilk
2013-08-08  1:02           ` Gleb Natapov
2013-08-08  1:02             ` Gleb Natapov
2013-08-08 21:13             ` H. Peter Anvin
2013-08-08 21:13               ` H. Peter Anvin
2013-08-08 23:04               ` H. Peter Anvin
2013-08-08 23:04                 ` H. Peter Anvin
2013-08-09 12:50                 ` Raghavendra K T
2013-08-09 13:00                   ` Konrad Rzeszutek Wilk
2013-08-09 13:00                     ` Konrad Rzeszutek Wilk
2013-08-09 13:14                     ` Raghavendra K T
2013-08-09 13:14                     ` Raghavendra K T
2013-08-09 14:51                     ` H. Peter Anvin
2013-08-09 14:51                       ` H. Peter Anvin
2013-08-09 12:50                 ` Raghavendra K T
2013-08-08  2:59         ` Raghavendra K T
2013-08-08  2:59           ` Raghavendra K T
2013-08-09  1:04 ` H. Peter Anvin
2013-08-09  1:04   ` H. Peter Anvin
2013-08-09  4:28   ` Raghavendra K T
2013-08-09  4:28     ` Raghavendra K T
2013-08-09 13:09   ` Raghavendra K T
2013-08-09 13:09     ` Raghavendra K T
2013-08-09 14:20   ` Raghavendra K T
2013-08-09 14:20     ` Raghavendra K T

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