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authorThomas Gleixner <tglx@linutronix.de>2011-03-12 13:22:22 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-03-12 13:22:28 +0100
commitcfe08bba1e0017d94a8f738a195d3a2b479327e3 (patch)
tree4546939fd9fbddc978b6eaa0299b03177e9e643b /arch/s390/include/asm/atomic.h
parent58bff947e2d164c7e5cbf7f485e4b3d4884befeb (diff)
parentabb0052289e58140d933b29491f59e4be0a19727 (diff)
Merge branch 'x86/apic' into x86/irq
Reason: Update to latest genirq code conflicts with pending apic changes Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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 76daea11718..5c5ba10384c 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)