From: Babu Moger <babu.moger@oracle.com>
To: David Miller <davem@davemloft.net>
Cc: peterz@infradead.org, mingo@redhat.com, arnd@arndb.de,
shannon.nelson@oracle.com, haakon.bugge@oracle.com,
steven.sistare@oracle.com, vijay.ac.kumar@oracle.com,
jane.chu@oracle.com, sparclinux@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH 6/6] arch/sparc: Enable queued spinlock support for SPARC
Date: Fri, 19 May 2017 11:37:06 -0500 [thread overview]
Message-ID: <8e402c6d-7912-afb0-7be7-76dd9b06cf57@oracle.com> (raw)
In-Reply-To: <20170518.223220.105988940116687879.davem@davemloft.net>
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
prev parent reply other threads:[~2017-05-19 16:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-19 0:36 [PATCH 0/6] Enable queued rwlock and queued spinlock " Babu Moger
2017-05-19 0:36 ` [PATCH 1/6] kernel/locking: Fix compile error with qrwlock.c Babu Moger
2017-05-19 2:27 ` David Miller
2017-05-19 16:35 ` Babu Moger
2017-05-19 0:36 ` [PATCH 2/6] arch/sparc: Define config parameter CPU_BIG_ENDIAN Babu Moger
2017-05-19 2:26 ` David Miller
2017-05-19 16:26 ` Babu Moger
2017-05-19 0:36 ` [PATCH 3/6] arch/sparc: Introduce cmpxchg_u8 SPARC Babu Moger
2017-05-19 0:36 ` [PATCH 4/6] arch/sparc: Enable queued rwlocks for SPARC Babu Moger
2017-05-19 2:31 ` David Miller
2017-05-19 9:03 ` Peter Zijlstra
2017-05-19 16:43 ` Babu Moger
2017-05-19 19:15 ` David Miller
2017-05-19 19:31 ` Peter Zijlstra
2017-05-19 19:35 ` David Miller
2017-05-19 16:36 ` Babu Moger
2017-05-19 0:36 ` [PATCH 5/6] arch/sparc: Introduce xchg16 " Babu Moger
2017-05-19 0:36 ` [PATCH 6/6] arch/sparc: Enable queued spinlock support " Babu Moger
2017-05-19 2:32 ` David Miller
2017-05-19 16:37 ` Babu Moger [this message]
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