[Xen-devel] [PATCH RFC V9 2/19] x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks

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

x86/ticketlock: Don't inline _spin_unlock when using paravirt spinlocks

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 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 685692c..80fcc4b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -621,6 +621,7 @@ config PARAVIRT_DEBUG
 config PARAVIRT_SPINLOCKS
        bool "Paravirtualization layer for spinlocks"
        depends on PARAVIRT && SMP
+       select UNINLINE_SPIN_UNLOCK
        ---help---
          Paravirtualized spinlocks allow a pvops backend to replace the
          spinlock implementation with something virtualization-friendly


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