diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2011-03-12 13:22:22 +0100 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2011-03-12 13:22:28 +0100 |
commit | cfe08bba1e0017d94a8f738a195d3a2b479327e3 (patch) | |
tree | 4546939fd9fbddc978b6eaa0299b03177e9e643b /arch/s390/include/asm/atomic.h | |
parent | 58bff947e2d164c7e5cbf7f485e4b3d4884befeb (diff) | |
parent | abb0052289e58140d933b29491f59e4be0a19727 (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.h | 26 |
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) |