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| author | Michael S. Tsirkin <mst@redhat.com> | 2016-01-06 09:13:14 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-01-12 20:47:04 +0200 |
| commit | a677f4869576eb177570ffee68598d2202de030f (patch) | |
| tree | fb817d6ec7824f055e25334c39efb6219324a20e /arch/s390 | |
| parent | 234927540e6ac82f5f083a11c3e860e346ed09bc (diff) | |
| download | linux-a677f4869576eb177570ffee68598d2202de030f.tar.bz2 | |
s390: use generic memory barriers
The s390 kernel is SMP to 99.99%, we just didn't bother with a
non-smp variant for the memory-barriers. If the generic header
is used we'd get the non-smp version for free. It will save a
small amount of text space for CONFIG_SMP=n.
Suggested-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/barrier.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h index fbd25b299c8b..4d26fa43ec90 100644 --- a/arch/s390/include/asm/barrier.h +++ b/arch/s390/include/asm/barrier.h @@ -29,9 +29,6 @@ #define __smp_mb() mb() #define __smp_rmb() rmb() #define __smp_wmb() wmb() -#define smp_mb() __smp_mb() -#define smp_rmb() __smp_rmb() -#define smp_wmb() __smp_wmb() #define __smp_store_release(p, v) \ do { \ |