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authorTony Lindgren <tony@atomide.com>2011-03-02 17:07:14 -0800
committerTony Lindgren <tony@atomide.com>2011-03-02 17:07:14 -0800
commit12d7d4e0ed8fecf7f74c89483b55b300be6e5901 (patch)
treef573761ac752ff04ec445e23aef50adadda49790 /arch/s390/include/asm/atomic.h
parentaca6ad073ea820776bf5bdb87cf82eace35042c8 (diff)
parent790ab7e92bec24aee3939b300d36b99ab2e3f3ca (diff)
downloadlinux-next-12d7d4e0ed8fecf7f74c89483b55b300be6e5901.tar.gz
Merge branch 'devel-cleanup' into omap-for-linus
Conflicts: arch/arm/mach-omap2/timer-gp.c
Diffstat (limited to 'arch/s390/include/asm/atomic.h')
-rw-r--r--arch/s390/include/asm/atomic.h26
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 76daea117181..5c5ba10384c2 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -36,14 +36,19 @@
static inline int atomic_read(const atomic_t *v)
{
- barrier();
- return v->counter;
+ int c;
+
+ asm volatile(
+ " l %0,%1\n"
+ : "=d" (c) : "Q" (v->counter));
+ return c;
}
static inline void atomic_set(atomic_t *v, int i)
{
- v->counter = i;
- barrier();
+ asm volatile(
+ " st %1,%0\n"
+ : "=Q" (v->counter) : "d" (i));
}
static inline int atomic_add_return(int i, atomic_t *v)
@@ -128,14 +133,19 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
static inline long long atomic64_read(const atomic64_t *v)
{
- barrier();
- return v->counter;
+ long long c;
+
+ asm volatile(
+ " lg %0,%1\n"
+ : "=d" (c) : "Q" (v->counter));
+ return c;
}
static inline void atomic64_set(atomic64_t *v, long long i)
{
- v->counter = i;
- barrier();
+ asm volatile(
+ " stg %1,%0\n"
+ : "=Q" (v->counter) : "d" (i));
}
static inline long long atomic64_add_return(long long i, atomic64_t *v)