diff options
Diffstat (limited to 'include/asm-m68k/atomic.h')
| -rw-r--r-- | include/asm-m68k/atomic.h | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/include/asm-m68k/atomic.h b/include/asm-m68k/atomic.h index d5eed64cb83..4915294fea6 100644 --- a/include/asm-m68k/atomic.h +++ b/include/asm-m68k/atomic.h @@ -2,7 +2,7 @@ #define __ARCH_M68K_ATOMIC__ -#include <asm/system.h> /* local_irq_XXX() */ +#include <asm/system.h> /* * Atomic operations that C can't guarantee us. Useful for @@ -170,20 +170,21 @@ static inline void atomic_set_mask(unsigned long mask, unsigned long *v) __asm__ __volatile__("orl %1,%0" : "+m" (*v) : "id" (mask)); } -#define atomic_add_unless(v, a, u) \ -({ \ - int c, old; \ - c = atomic_read(v); \ - for (;;) { \ - if (unlikely(c == (u))) \ - break; \ - old = atomic_cmpxchg((v), c, c + (a)); \ - if (likely(old == c)) \ - break; \ - c = old; \ - } \ - c != (u); \ -}) +static __inline__ int atomic_add_unless(atomic_t *v, int a, int u) +{ + int c, old; + c = atomic_read(v); + for (;;) { + if (unlikely(c == (u))) + break; + old = atomic_cmpxchg((v), c, c + (a)); + if (likely(old == c)) + break; + c = old; + } + return c != (u); +} + #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) /* Atomic operations are already serializing */ |