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-rw-r--r--include/asm-i386/rwsem.h35
1 files changed, 17 insertions, 18 deletions
diff --git a/include/asm-i386/rwsem.h b/include/asm-i386/rwsem.h
index 2f07601562e7..43113f5608eb 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
111 " jmp 1b\n" 111 " jmp 1b\n"
112 LOCK_SECTION_END 112 LOCK_SECTION_END
113 "# ending down_read\n\t" 113 "# ending down_read\n\t"
114 : "=m"(sem->count) 114 : "+m" (sem->count)
115 : "a"(sem), "m"(sem->count) 115 : "a" (sem)
116 : "memory", "cc"); 116 : "memory", "cc");
117} 117}
118 118
@@ -133,8 +133,8 @@ LOCK_PREFIX " cmpxchgl %2,%0\n\t"
133 " jnz 1b\n\t" 133 " jnz 1b\n\t"
134 "2:\n\t" 134 "2:\n\t"
135 "# ending __down_read_trylock\n\t" 135 "# ending __down_read_trylock\n\t"
136 : "+m"(sem->count), "=&a"(result), "=&r"(tmp) 136 : "+m" (sem->count), "=&a" (result), "=&r" (tmp)
137 : "i"(RWSEM_ACTIVE_READ_BIAS) 137 : "i" (RWSEM_ACTIVE_READ_BIAS)
138 : "memory", "cc"); 138 : "memory", "cc");
139 return result>=0 ? 1 : 0; 139 return result>=0 ? 1 : 0;
140} 140}
@@ -161,8 +161,8 @@ LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtract 0x0000ffff, returns the
161 " jmp 1b\n" 161 " jmp 1b\n"
162 LOCK_SECTION_END 162 LOCK_SECTION_END
163 "# ending down_write" 163 "# ending down_write"
164 : "=m"(sem->count), "=d"(tmp) 164 : "+m" (sem->count), "=d" (tmp)
165 : "a"(sem), "1"(tmp), "m"(sem->count) 165 : "a" (sem), "1" (tmp)
166 : "memory", "cc"); 166 : "memory", "cc");
167} 167}
168 168
@@ -205,8 +205,8 @@ LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtracts 1, returns the old valu
205 " jmp 1b\n" 205 " jmp 1b\n"
206 LOCK_SECTION_END 206 LOCK_SECTION_END
207 "# ending __up_read\n" 207 "# ending __up_read\n"
208 : "=m"(sem->count), "=d"(tmp) 208 : "+m" (sem->count), "=d" (tmp)
209 : "a"(sem), "1"(tmp), "m"(sem->count) 209 : "a" (sem), "1" (tmp)
210 : "memory", "cc"); 210 : "memory", "cc");
211} 211}
212 212
@@ -231,8 +231,8 @@ LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t" /* tries to transition 0xffff0001 ->
231 " jmp 1b\n" 231 " jmp 1b\n"
232 LOCK_SECTION_END 232 LOCK_SECTION_END
233 "# ending __up_write\n" 233 "# ending __up_write\n"
234 : "=m"(sem->count) 234 : "+m" (sem->count)
235 : "a"(sem), "i"(-RWSEM_ACTIVE_WRITE_BIAS), "m"(sem->count) 235 : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS)
236 : "memory", "cc", "edx"); 236 : "memory", "cc", "edx");
237} 237}
238 238
@@ -256,8 +256,8 @@ LOCK_PREFIX " addl %2,(%%eax)\n\t" /* transitions 0xZZZZ0001 -> 0xYYYY0001
256 " jmp 1b\n" 256 " jmp 1b\n"
257 LOCK_SECTION_END 257 LOCK_SECTION_END
258 "# ending __downgrade_write\n" 258 "# ending __downgrade_write\n"
259 : "=m"(sem->count) 259 : "+m" (sem->count)
260 : "a"(sem), "i"(-RWSEM_WAITING_BIAS), "m"(sem->count) 260 : "a" (sem), "i" (-RWSEM_WAITING_BIAS)
261 : "memory", "cc"); 261 : "memory", "cc");
262} 262}
263 263
@@ -268,8 +268,8 @@ static inline void rwsem_atomic_add(int delta, struct rw_semaphore *sem)
268{ 268{
269 __asm__ __volatile__( 269 __asm__ __volatile__(
270LOCK_PREFIX "addl %1,%0" 270LOCK_PREFIX "addl %1,%0"
271 : "=m"(sem->count) 271 : "+m" (sem->count)
272 : "ir"(delta), "m"(sem->count)); 272 : "ir" (delta));
273} 273}
274 274
275/* 275/*
@@ -280,10 +280,9 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
280 int tmp = delta; 280 int tmp = delta;
281 281
282 __asm__ __volatile__( 282 __asm__ __volatile__(
283LOCK_PREFIX "xadd %0,(%2)" 283LOCK_PREFIX "xadd %0,%1"
284 : "+r"(tmp), "=m"(sem->count) 284 : "+r" (tmp), "+m" (sem->count)
285 : "r"(sem), "m"(sem->count) 285 : : "memory");
286 : "memory");
287 286
288 return tmp+delta; 287 return tmp+delta;
289} 288}