Re: [PATCH 6/6] arch/sparc: Enable queued spinlock support for SPARC

[Babu Moger]

On 5/18/2017 9:32 PM, David Miller wrote:
> From: Babu Moger <babu.moger@xxxxxxxxxx>
> Date: Thu, 18 May 2017 18:36:10 -0600
>
> > @@ -83,6 +83,7 @@ config SPARC64
> >   	select ARCH_SUPPORTS_ATOMIC_RMW
> >   	select HAVE_NMI
> >   	select ARCH_USE_QUEUED_RWLOCKS
> > +	select ARCH_USE_QUEUED_SPINLOCKS
> >   
> >   config ARCH_DEFCONFIG
> >   	string
> Like the queued spinlock enabling patch, if this will be on
> all the time for SPARC64 then:
>
> > diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
> > index 562dbd8..e2044e3 100644
> > --- a/arch/sparc/include/asm/spinlock_64.h
> > +++ b/arch/sparc/include/asm/spinlock_64.h
> > @@ -11,6 +11,9 @@
> >   #include <asm/processor.h>
> >   #include <asm/barrier.h>
> >   
> > +#ifdef CONFIG_QUEUED_SPINLOCKS
> > +#include <asm/qspinlock.h>
> > +#else
> This ifdef doesn't make any sense, by definition it will always be on.

Ok. Will do. thanks