- Subject: [PATCH RFC V8 2/17] x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks
- From: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
- Date: Wed, 02 May 2012 15:36:40 +0530
- Cc: Attilio Rao <attilio.rao@xxxxxxxxxx>, Srivatsa Vaddagiri <vatsa@xxxxxxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, linux-doc@xxxxxxxxxxxxxxx, KVM <kvm@xxxxxxxxxxxxxxx>, Andi Kleen <andi@xxxxxxxxxxxxxx>, Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Stephan Diestelhorst <stephan.diestelhorst@xxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>
- In-reply-to: <20120502100610.13206.40.sendpatchset@codeblue.in.ibm.com>
- References: <20120502100610.13206.40.sendpatchset@codeblue.in.ibm.com>
From: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
---
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
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