diff options
author | Tony Lindgren <tony@atomide.com> | 2011-03-02 17:07:14 -0800 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2011-03-02 17:07:14 -0800 |
commit | 12d7d4e0ed8fecf7f74c89483b55b300be6e5901 (patch) | |
tree | f573761ac752ff04ec445e23aef50adadda49790 /arch/s390/include/asm/atomic.h | |
parent | aca6ad073ea820776bf5bdb87cf82eace35042c8 (diff) | |
parent | 790ab7e92bec24aee3939b300d36b99ab2e3f3ca (diff) | |
download | linux-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.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 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) |