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List: linux-virtualization
Subject: [PATCH v2 17/32] arm: define __smp_xxx
From: "Michael S. Tsirkin" <mst () redhat ! com>
Date: 2015-12-31 19:07:59
Message-ID: 1451572003-2440-18-git-send-email-mst () redhat ! com
[Download RAW message or body]
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
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