Merge mulgrave-w:git/linux-2.6

[linux-2.6] / include / asm-i386 / spinlock.h

diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h
index 87c40f8306532b1bf4cf854bc39180f1ebe11098..d1020363c41ab744cebcb2ae4896849fbe10c6b2 100644 (file)
--- a/include/asm-i386/spinlock.h
+++ b/include/asm-i386/spinlock.h
@@ -22,7 +22,7 @@
 
 #define __raw_spin_lock_string \
        "\n1:\t" \
-       "lock ; decb %0\n\t" \
+       LOCK_PREFIX " ; decb %0\n\t" \
        "jns 3f\n" \
        "2:\t" \
        "rep;nop\n\t" \
@@ -38,7 +38,7 @@
  */
 #define __raw_spin_lock_string_flags \
        "\n1:\t" \
-       "lock ; decb %0\n\t" \
+       LOCK_PREFIX " ; decb %0\n\t" \
        "jns 5f\n" \
        "2:\t" \
        "testl $0x200, %1\n\t" \
@@ -57,15 +57,9 @@
        "jmp 4b\n" \
        "5:\n\t"
 
-#define __raw_spin_lock_string_up \
-       "\n\tdecb %0"
-
 static inline void __raw_spin_lock(raw_spinlock_t *lock)
 {
-       alternative_smp(
-               __raw_spin_lock_string,
-               __raw_spin_lock_string_up,
-               "=m" (lock->slock) : : "memory");
+       asm(__raw_spin_lock_string : "+m" (lock->slock) : : "memory");
 }
 
 /*
@@ -76,10 +70,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 #ifndef CONFIG_PROVE_LOCKING
 static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
 {
-       alternative_smp(
-               __raw_spin_lock_string_flags,
-               __raw_spin_lock_string_up,
-               "=m" (lock->slock) : "r" (flags) : "memory");
+       asm(__raw_spin_lock_string_flags : "+m" (lock->slock) : "r" (flags) : "memory");
 }
 #endif
 
@@ -88,7 +79,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
        char oldval;
        __asm__ __volatile__(
                "xchgb %b0,%1"
-               :"=q" (oldval), "=m" (lock->slock)
+               :"=q" (oldval), "+m" (lock->slock)
                :"0" (0) : "memory");
        return oldval > 0;
 }
@@ -104,7 +95,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 
 #define __raw_spin_unlock_string \
        "movb $1,%0" \
-               :"=m" (lock->slock) : : "memory"
+               :"+m" (lock->slock) : : "memory"
 
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lock)
@@ -118,7 +109,7 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 
 #define __raw_spin_unlock_string \
        "xchgb %b0, %1" \
-               :"=q" (oldval), "=m" (lock->slock) \
+               :"=q" (oldval), "+m" (lock->slock) \
                :"0" (oldval) : "memory"
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lock)
@@ -199,13 +190,13 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock)
 
 static inline void __raw_read_unlock(raw_rwlock_t *rw)
 {
-       asm volatile(LOCK_PREFIX "incl %0" :"=m" (rw->lock) : : "memory");
+       asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory");
 }
 
 static inline void __raw_write_unlock(raw_rwlock_t *rw)
 {
        asm volatile(LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ", %0"
-                                : "=m" (rw->lock) : : "memory");
+                                : "+m" (rw->lock) : : "memory");
 }
 
 #endif /* __ASM_SPINLOCK_H */