[PATCH v3 40/41] s390: use generic memory barriers
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2016-01-10 14:22:18
Also in:
linux-arch, linux-arm-kernel, linux-mips, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux
Subsystem:
s390 architecture, the rest · Maintainers:
Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds
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 <redacted> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- arch/s390/include/asm/barrier.h | 3 --- 1 file changed, 3 deletions(-)
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index fbd25b2..4d26fa4 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 { \
--
MST