[Xen-devel] [PATCH RFC V6 2/11] x86/ticketlock: don't inline _spin_unlock when using paravirt spinlocks

[Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>]

From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

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

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Signed-off-by: Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>
---
 arch/x86/Kconfig     |    3 +++
 kernel/Kconfig.locks |    2 +-
 2 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5bed94e..10c28ec 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -623,6 +623,9 @@ config PARAVIRT_SPINLOCKS
 
          If you are unsure how to answer this question, answer N.
 
+config ARCH_NOINLINE_SPIN_UNLOCK
+       def_bool PARAVIRT_SPINLOCKS
+
 config PARAVIRT_CLOCK
        bool
 
diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index 5068e2a..584637b 100644
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -125,7 +125,7 @@ config INLINE_SPIN_LOCK_IRQSAVE
                 ARCH_INLINE_SPIN_LOCK_IRQSAVE
 
 config INLINE_SPIN_UNLOCK
-       def_bool !DEBUG_SPINLOCK && (!PREEMPT || ARCH_INLINE_SPIN_UNLOCK)
+       def_bool !DEBUG_SPINLOCK && (!PREEMPT || ARCH_INLINE_SPIN_UNLOCK) && 
!ARCH_NOINLINE_SPIN_UNLOCK
 
 config INLINE_SPIN_UNLOCK_BH
        def_bool !DEBUG_SPINLOCK && ARCH_INLINE_SPIN_UNLOCK_BH


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