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

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Sun, Jun 02, 2013 at 12:52:09AM +0530, Raghavendra K T wrote:
> 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>

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> ---
>  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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