diff options
Diffstat (limited to 'include/asm-i386/rwsem.h')
| -rw-r--r-- | include/asm-i386/rwsem.h | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/include/asm-i386/rwsem.h b/include/asm-i386/rwsem.h index 2f07601562e..43113f5608e 100644 --- a/include/asm-i386/rwsem.h +++ b/include/asm-i386/rwsem.h @@ -111,8 +111,8 @@ LOCK_PREFIX " incl (%%eax)\n\t" /* adds 0x00000001, returns the old value " jmp 1b\n" LOCK_SECTION_END "# ending down_read\n\t" - : "=m"(sem->count) - : "a"(sem), "m"(sem->count) + : "+m" (sem->count) + : "a" (sem) : "memory", "cc"); } @@ -133,8 +133,8 @@ LOCK_PREFIX " cmpxchgl %2,%0\n\t" " jnz 1b\n\t" "2:\n\t" "# ending __down_read_trylock\n\t" - : "+m"(sem->count), "=&a"(result), "=&r"(tmp) - : "i"(RWSEM_ACTIVE_READ_BIAS) + : "+m" (sem->count), "=&a" (result), "=&r" (tmp) + : "i" (RWSEM_ACTIVE_READ_BIAS) : "memory", "cc"); return result>=0 ? 1 : 0; } @@ -161,8 +161,8 @@ LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtract 0x0000ffff, returns the " jmp 1b\n" LOCK_SECTION_END "# ending down_write" - : "=m"(sem->count), "=d"(tmp) - : "a"(sem), "1"(tmp), "m"(sem->count) + : "+m" (sem->count), "=d" (tmp) + : "a" (sem), "1" (tmp) : "memory", "cc"); } @@ -205,8 +205,8 @@ LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtracts 1, returns the old valu " jmp 1b\n" LOCK_SECTION_END "# ending __up_read\n" - : "=m"(sem->count), "=d"(tmp) - : "a"(sem), "1"(tmp), "m"(sem->count) + : "+m" (sem->count), "=d" (tmp) + : "a" (sem), "1" (tmp) : "memory", "cc"); } @@ -231,8 +231,8 @@ LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t" /* tries to transition 0xffff0001 -> " jmp 1b\n" LOCK_SECTION_END "# ending __up_write\n" - : "=m"(sem->count) - : "a"(sem), "i"(-RWSEM_ACTIVE_WRITE_BIAS), "m"(sem->count) + : "+m" (sem->count) + : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS) : "memory", "cc", "edx"); } @@ -256,8 +256,8 @@ LOCK_PREFIX " addl %2,(%%eax)\n\t" /* transitions 0xZZZZ0001 -> 0xYYYY0001 " jmp 1b\n" LOCK_SECTION_END "# ending __downgrade_write\n" - : "=m"(sem->count) - : "a"(sem), "i"(-RWSEM_WAITING_BIAS), "m"(sem->count) + : "+m" (sem->count) + : "a" (sem), "i" (-RWSEM_WAITING_BIAS) : "memory", "cc"); } @@ -268,8 +268,8 @@ static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem) { __asm__ __volatile__( LOCK_PREFIX "addl %1,%0" - : "=m"(sem->count) - : "ir"(delta), "m"(sem->count)); + : "+m" (sem->count) + : "ir" (delta)); } /* @@ -280,10 +280,9 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem) int tmp = delta; __asm__ __volatile__( -LOCK_PREFIX "xadd %0,(%2)" - : "+r"(tmp), "=m"(sem->count) - : "r"(sem), "m"(sem->count) - : "memory"); +LOCK_PREFIX "xadd %0,%1" + : "+r" (tmp), "+m" (sem->count) + : : "memory"); return tmp+delta; } |