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| author | Michael S. Tsirkin | 2015-12-21 08:22:18 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin | 2016-01-12 19:46:50 +0100 |
| commit | 90ff6a17d0e07d689886cba4244674bfd41e7a2d (patch) | |
| tree | 5cd89aad6e619bc05d02746014b4dbeeb57c11d2 | |
| parent | arm: reuse asm-generic/barrier.h (diff) | |
| download | kernel-qcow2-linux-90ff6a17d0e07d689886cba4244674bfd41e7a2d.tar.gz kernel-qcow2-linux-90ff6a17d0e07d689886cba4244674bfd41e7a2d.tar.xz kernel-qcow2-linux-90ff6a17d0e07d689886cba4244674bfd41e7a2d.zip | |
arm64: reuse asm-generic/barrier.h
On arm64 nop, read_barrier_depends, smp_read_barrier_depends
smp_store_mb(), smp_mb__before_atomic and smp_mb__after_atomic match the
asm-generic variants exactly. Drop the local definitions and pull in
asm-generic/barrier.h instead.
This is in preparation to refactoring this code area.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
| -rw-r--r-- | arch/arm64/include/asm/barrier.h | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h index 9622eb48f894..91a43f48914d 100644 --- a/arch/arm64/include/asm/barrier.h +++ b/arch/arm64/include/asm/barrier.h @@ -91,14 +91,7 @@ do { \ __u.__val; \ }) -#define read_barrier_depends() do { } while(0) -#define smp_read_barrier_depends() do { } while(0) - -#define smp_store_mb(var, value) do { WRITE_ONCE(var, value); smp_mb(); } while (0) -#define nop() asm volatile("nop"); - -#define smp_mb__before_atomic() smp_mb() -#define smp_mb__after_atomic() smp_mb() +#include <asm-generic/barrier.h> #endif /* __ASSEMBLY__ */ |