diff options
author | Ingo Molnar <mingo@elte.hu> | 2011-03-15 08:29:44 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2011-03-15 08:29:44 +0100 |
commit | 8460b3e5bc64955aeefdd8357b3bf7b5ff79b3f2 (patch) | |
tree | 7e5f6d050b72ab08a4497e82a4a103fefb086e80 /arch/s390/include/asm/atomic.h | |
parent | 56396e6823fe9b42fe9cf9403d6ed67756255f70 (diff) | |
parent | 521cb40b0c44418a4fd36dc633f575813d59a43d (diff) |
Merge commit 'v2.6.38' into x86/mm
Conflicts:
arch/x86/mm/numa_64.c
Merge reason: Resolve the conflict, update the branch to .38.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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) |