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From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
To: "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>
Cc: Andrew Jones <drjones@redhat.com>,
	Xen Devel <xen-devel@lists.xensource.com>,
	KVM <kvm@vger.kernel.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Peter Zijlstra <peterz@infradead.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Stephan Diestelhorst <stephan.diestelhorst@amd.com>,
	the arch/x86 maintainers <x86@kernel.org>,
	Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
	Virtualization <virtualization@lists.linux-foundation.org>,
	Andi Kleen <andi@firstfloor.org>,
	Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Attilio Rao <attilio.rao@citrix.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Avi Kivity <avi@redhat.com>
Subject: [PATCH RFC V7 2/12] x86/ticketlock: don't inline _spin_unlock when using paravirt spinlocks
Date: Fri, 20 Apr 2012 01:42:59 +0530	[thread overview]
Message-ID: <20120419201256.5411.59675.sendpatchset@codeblue> (raw)
In-Reply-To: <20120419201209.5411.43877.sendpatchset@codeblue>

From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> 

The code size expands somewhat, and its better to just call
a function rather than inline it.

Thanks Jeremy for original version of ARCH_NOINLINE_SPIN_UNLOCK config patch, 
which is simplified.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
---
 arch/x86/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d14cc6..35eb2e4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -597,6 +597,7 @@ config PARAVIRT
 config PARAVIRT_SPINLOCKS
 	bool "Paravirtualization layer for spinlocks"
 	depends on PARAVIRT && SMP && EXPERIMENTAL
+	select UNINLINE_SPIN_UNLOCK
 	---help---
 	  Paravirtualized spinlocks allow a pvops backend to replace the
 	  spinlock implementation with something virtualization-friendly

WARNING: multiple messages have this Message-ID (diff)
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
To: "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>
Cc: Attilio Rao <attilio.rao@citrix.com>,
	Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
	the arch/x86 maintainers <x86@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Virtualization <virtualization@lists.linux-foundation.org>,
	Xen Devel <xen-devel@lists.xensource.com>,
	KVM <kvm@vger.kernel.org>,
	Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
	Andi Kleen <andi@firstfloor.org>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Andrew Jones <drjones@redhat.com>, Avi Kivity <avi@redhat.com>,
	Stephan Diestelhorst <stephan.diestelhorst@amd.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH RFC V7 2/12]  x86/ticketlock: don't inline _spin_unlock when using paravirt spinlocks
Date: Fri, 20 Apr 2012 01:42:59 +0530	[thread overview]
Message-ID: <20120419201256.5411.59675.sendpatchset@codeblue> (raw)
In-Reply-To: <20120419201209.5411.43877.sendpatchset@codeblue>

From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> 

The code size expands somewhat, and its better to just call
a function rather than inline it.

Thanks Jeremy for original version of ARCH_NOINLINE_SPIN_UNLOCK config patch, 
which is simplified.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
---
 arch/x86/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d14cc6..35eb2e4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -597,6 +597,7 @@ config PARAVIRT
 config PARAVIRT_SPINLOCKS
 	bool "Paravirtualization layer for spinlocks"
 	depends on PARAVIRT && SMP && EXPERIMENTAL
+	select UNINLINE_SPIN_UNLOCK
 	---help---
 	  Paravirtualized spinlocks allow a pvops backend to replace the
 	  spinlock implementation with something virtualization-friendly


  parent reply	other threads:[~2012-04-19 20:12 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-19 20:12 [PATCH RFC V7 0/12] Paravirtualized ticketlocks Raghavendra K T
2012-04-19 20:12 ` Raghavendra K T
2012-04-19 20:12 ` [PATCH RFC V7 1/12] x86/spinlock: replace pv spinlocks with pv ticketlocks Raghavendra K T
2012-04-19 20:12   ` Raghavendra K T
2012-04-19 20:12 ` Raghavendra K T [this message]
2012-04-19 20:12   ` [PATCH RFC V7 2/12] x86/ticketlock: don't inline _spin_unlock when using paravirt spinlocks Raghavendra K T
2012-04-19 20:13 ` [PATCH RFC V7 3/12] x86/ticketlock: collapse a layer of functions Raghavendra K T
2012-04-19 20:13   ` Raghavendra K T
2012-04-19 20:13 ` [PATCH RFC V7 4/12] xen: defer spinlock setup until boot CPU setup Raghavendra K T
2012-04-19 20:13   ` Raghavendra K T
2012-04-19 20:14 ` [PATCH RFC V7 5/12] xen/pvticketlock: Xen implementation for PV ticket locks Raghavendra K T
2012-04-19 20:14   ` Raghavendra K T
2012-04-19 20:14 ` [PATCH RFC V7 6/12] xen/pvticketlocks: add xen_nopvspin parameter to disable xen pv ticketlocks Raghavendra K T
2012-04-19 20:14   ` Raghavendra K T
2012-04-19 20:15 ` [PATCH RFC V7 7/12] x86/pvticketlock: use callee-save for lock_spinning Raghavendra K T
2012-04-19 20:15 ` Raghavendra K T
2012-04-19 20:15 ` [PATCH RFC V7 8/12] x86/pvticketlock: when paravirtualizing ticket locks, increment by 2 Raghavendra K T
2012-04-19 20:15 ` Raghavendra K T
2012-04-19 20:15 ` [PATCH RFC V7 9/12] split out rate limiting from jump_label.h Raghavendra K T
2012-04-19 20:15   ` Raghavendra K T
2012-04-19 20:16 ` [PATCH RFC V7 10/12] x86/ticketlock: add slowpath logic Raghavendra K T
2012-04-19 20:16 ` Raghavendra K T
2012-04-19 20:16 ` [PATCH RFC V7 11/12] xen/pvticketlock: allow interrupts to be enabled while blocking Raghavendra K T
2012-04-19 20:16 ` Raghavendra K T
2012-04-19 20:17 ` [PATCH RFC V7 12/12] xen: enable PV ticketlocks on HVM Xen Raghavendra K T
2012-04-19 20:17   ` Raghavendra K T
2012-05-01 12:50 ` [Xen-devel] [PATCH RFC V7 0/12] Paravirtualized ticketlocks Ian Campbell
2012-05-01 12:50   ` Ian Campbell
2012-05-01 13:04   ` Raghavendra K T
2012-05-01 13:04     ` Raghavendra K T

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