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| author | Michael S. Tsirkin <mst@redhat.com> | 2015-12-21 09:22:18 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-01-12 20:46:52 +0200 |
| commit | 300b06d4555305dc227748674f75970f2f84c224 (patch) | |
| tree | 32f77a1e30af1f54cbbccb74a7c5f8c9cfc5a904 /arch/x86/include/asm/barrier.h | |
| parent | 577f183acc88645eae116326cc2203dc88ea730c (diff) | |
| download | linux-0-day-300b06d4555305dc227748674f75970f2f84c224.tar.gz linux-0-day-300b06d4555305dc227748674f75970f2f84c224.tar.xz | |
x86: reuse asm-generic/barrier.h
As on most architectures, on x86 read_barrier_depends and
smp_read_barrier_depends are empty. Drop the local definitions and pull
the generic ones from asm-generic/barrier.h instead: they are identical.
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>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/barrier.h')
| -rw-r--r-- | arch/x86/include/asm/barrier.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h index 0681d2532527f..cc4c2a77bd010 100644 --- a/arch/x86/include/asm/barrier.h +++ b/arch/x86/include/asm/barrier.h @@ -43,9 +43,6 @@ #define smp_store_mb(var, value) do { WRITE_ONCE(var, value); barrier(); } while (0) #endif /* SMP */ -#define read_barrier_depends() do { } while (0) -#define smp_read_barrier_depends() do { } while (0) - #if defined(CONFIG_X86_PPRO_FENCE) /* @@ -91,4 +88,6 @@ do { \ #define smp_mb__before_atomic() barrier() #define smp_mb__after_atomic() barrier() +#include <asm-generic/barrier.h> + #endif /* _ASM_X86_BARRIER_H */ |