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SubjectRe: [PATCH 6/6] arch/sparc: Enable queued spinlock support for SPARC
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On 5/18/2017 9:32 PM, David Miller wrote:
> From: Babu Moger <babu.moger@oracle.com>
> 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

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