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Groups > linux.kernel > #1299740
| From | "Michael S. Tsirkin" <mst@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 17/32] arm: define __smp_xxx |
| Date | 2015-12-31 20:10 +0100 |
| Message-ID | <qLQLM-8pu-25@gated-at.bofh.it> (permalink) |
| References | <qLQLL-8pu-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
This defines __smp_xxx barriers for arm, for use by virtualization. smp_xxx barriers are removed as they are defined correctly by asm-generic/barriers.h This reduces the amount of arch-specific boiler-plate code. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> --- arch/arm/include/asm/barrier.h | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h index 31152e8..112cc1a 100644 --- a/arch/arm/include/asm/barrier.h +++ b/arch/arm/include/asm/barrier.h @@ -60,15 +60,9 @@ extern void arm_heavy_mb(void); #define dma_wmb() barrier() #endif -#ifndef CONFIG_SMP -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#else -#define smp_mb() dmb(ish) -#define smp_rmb() smp_mb() -#define smp_wmb() dmb(ishst) -#endif +#define __smp_mb() dmb(ish) +#define __smp_rmb() __smp_mb() +#define __smp_wmb() dmb(ishst) #include <asm-generic/barrier.h> -- MST -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v2 17/32] arm: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2015-12-31 20:10 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx Russell King - ARM Linux <linux@arm.linux.org.uk> - 2016-01-02 12:30 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2016-01-03 10:20 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx Peter Zijlstra <peterz@infradead.org> - 2016-01-04 14:40 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx Peter Zijlstra <peterz@infradead.org> - 2016-01-04 15:00 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx Russell King - ARM Linux <linux@arm.linux.org.uk> - 2016-01-04 15:10 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2016-01-05 15:40 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2016-01-04 21:40 +0100
Re: [PATCH v2 17/32] arm: define __smp_xxx "Michael S. Tsirkin" <mst@redhat.com> - 2016-01-04 21:20 +0100
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