[PATCH 2/2] powerpc: Use generic atomic64_t implementation on 32-bit processors
From: Paul Mackerras <hidden>
Date: 2009-06-13 07:14:02
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lkml
Subsystem:
atomic infrastructure, linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Will Deacon, Peter Zijlstra, Boqun Feng, Madhavan Srinivasan, Linus Torvalds
From 02fccb02e29bc24e84a5b2ea6ea5d63779247408 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <redacted> Date: Sat, 13 Jun 2009 16:24:03 +1000 Subject: This makes 32-bit powerpc use the generic atomic64_t implementation. Signed-off-by: Paul Mackerras <redacted> --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/atomic.h | 3 +++ 2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index cdc9a6f..3f0a983 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig@@ -125,6 +125,7 @@ config PPC select USE_GENERIC_SMP_HELPERS if SMP select HAVE_OPROFILE select HAVE_SYSCALL_WRAPPERS if PPC64 + select GENERIC_ATOMIC64 if PPC32 config EARLY_PRINTK bool
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index b7d2d07..4012483 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h@@ -470,6 +470,9 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) +#else /* __powerpc64__ */ +#include <asm-generic/atomic64.h> + #endif /* __powerpc64__ */ #include <asm-generic/atomic-long.h>
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1.6.0.4