[PATCH] i386/x86-64: Use input/output dependencies for bitops
Noticed by Andreas Schwab
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/asm-i386/bitops.h b/include/asm-i386/bitops.h
index 65679ac..fe0819f 100644
--- a/include/asm-i386/bitops.h
+++ b/include/asm-i386/bitops.h
@@ -43,7 +43,7 @@
{
__asm__ __volatile__( LOCK_PREFIX
"btsl %1,%0"
- :"=m" (ADDR)
+ :"+m" (ADDR)
:"Ir" (nr));
}
@@ -60,7 +60,7 @@
{
__asm__(
"btsl %1,%0"
- :"=m" (ADDR)
+ :"+m" (ADDR)
:"Ir" (nr));
}
@@ -78,7 +78,7 @@
{
__asm__ __volatile__( LOCK_PREFIX
"btrl %1,%0"
- :"=m" (ADDR)
+ :"+m" (ADDR)
:"Ir" (nr));
}
@@ -86,7 +86,7 @@
{
__asm__ __volatile__(
"btrl %1,%0"
- :"=m" (ADDR)
+ :"+m" (ADDR)
:"Ir" (nr));
}
#define smp_mb__before_clear_bit() barrier()
@@ -105,7 +105,7 @@
{
__asm__ __volatile__(
"btcl %1,%0"
- :"=m" (ADDR)
+ :"+m" (ADDR)
:"Ir" (nr));
}
@@ -123,7 +123,7 @@
{
__asm__ __volatile__( LOCK_PREFIX
"btcl %1,%0"
- :"=m" (ADDR)
+ :"+m" (ADDR)
:"Ir" (nr));
}
@@ -142,7 +142,7 @@
__asm__ __volatile__( LOCK_PREFIX
"btsl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit),"=m" (ADDR)
+ :"=r" (oldbit),"+m" (ADDR)
:"Ir" (nr) : "memory");
return oldbit;
}
@@ -162,7 +162,7 @@
__asm__(
"btsl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit),"=m" (ADDR)
+ :"=r" (oldbit),"+m" (ADDR)
:"Ir" (nr));
return oldbit;
}
@@ -182,7 +182,7 @@
__asm__ __volatile__( LOCK_PREFIX
"btrl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit),"=m" (ADDR)
+ :"=r" (oldbit),"+m" (ADDR)
:"Ir" (nr) : "memory");
return oldbit;
}
@@ -202,7 +202,7 @@
__asm__(
"btrl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit),"=m" (ADDR)
+ :"=r" (oldbit),"+m" (ADDR)
:"Ir" (nr));
return oldbit;
}
@@ -214,7 +214,7 @@
__asm__ __volatile__(
"btcl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit),"=m" (ADDR)
+ :"=r" (oldbit),"+m" (ADDR)
:"Ir" (nr) : "memory");
return oldbit;
}
@@ -233,7 +233,7 @@
__asm__ __volatile__( LOCK_PREFIX
"btcl %2,%1\n\tsbbl %0,%0"
- :"=r" (oldbit),"=m" (ADDR)
+ :"=r" (oldbit),"+m" (ADDR)
:"Ir" (nr) : "memory");
return oldbit;
}