diff options
Diffstat (limited to 'include/asm-i386/atomic.h')
| -rw-r--r-- | include/asm-i386/atomic.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-i386/atomic.h b/include/asm-i386/atomic.h index 0112f9b35..51805488f 100644 --- a/include/asm-i386/atomic.h +++ b/include/asm-i386/atomic.h @@ -84,6 +84,17 @@ static __inline__ int atomic_dec_and_test(volatile atomic_t *v) return c != 0; } +static __inline__ int atomic_inc_and_test(volatile atomic_t *v) +{ + unsigned char c; + + __asm__ __volatile__( + LOCK "incl %0; sete %1" + :"=m" (__atomic_fool_gcc(v)), "=qm" (c) + :"m" (__atomic_fool_gcc(v))); + return c != 0; +} + extern __inline__ int atomic_add_negative(int i, volatile atomic_t *v) { unsigned char c; |