[PATCH 17/34] arm64: define __smp_xxx

Michael S. Tsirkin
2015-12-30T21:47:13Z

This defines __smp_XXX barriers for arm64,
for use by virtualization.

smp_XXX barriers are removed as they are
defined correctly by asm-generic/barriers.h

Note: arm64 does not support !SMP config,
so smp_XXX and __smp_XXX are always equivalent.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
arch/arm64/include/asm/barrier.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
index 91a43f4..dae5c49 100644
--- a/arch/arm64/include/asm/barrier.h
+++ b/arch/arm64/include/asm/barrier.h
@@ -35,11 +35,11 @@
#define dma_rmb() dmb(oshld)
#define dma_wmb() dmb(oshst)

-#define smp_mb() dmb(ish)
-#define smp_rmb() dmb(ishld)
-#define smp_wmb() dmb(ishst)
+#define __smp_mb() dmb(ish)
+#define __smp_rmb() dmb(ishld)
+#define __smp_wmb() dmb(ishst)

-#define smp_store_release(p, v) \
+#define __smp_store_release(p, v) \
do { \
compiletime_assert_atomic_type(*p); \
switch (sizeof(*p)) { \
@@ -62,7 +62,7 @@ do { \
} \
} while (0)

-#define smp_load_acquire(p) \
+#define __smp_load_acquire(p) \
({ \
union { typeof(*p) __val; char __c[1]; } __u; \
compiletime_assert_atomic_type(*p); \
--
MST