diff options
Diffstat (limited to 'include/asm-i386/spinlock.h')
| -rw-r--r-- | include/asm-i386/spinlock.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h index 23604350cdf..a1b8a8a30e2 100644 --- a/include/asm-i386/spinlock.h +++ b/include/asm-i386/spinlock.h @@ -48,18 +48,23 @@ "jmp 1b\n" \ "4:\n\t" +#define __raw_spin_lock_string_up \ + "\n\tdecb %0" + static inline void __raw_spin_lock(raw_spinlock_t *lock) { - __asm__ __volatile__( - __raw_spin_lock_string - :"=m" (lock->slock) : : "memory"); + alternative_smp( + __raw_spin_lock_string, + __raw_spin_lock_string_up, + "=m" (lock->slock) : : "memory"); } static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) { - __asm__ __volatile__( - __raw_spin_lock_string_flags - :"=m" (lock->slock) : "r" (flags) : "memory"); + alternative_smp( + __raw_spin_lock_string_flags, + __raw_spin_lock_string_up, + "=m" (lock->slock) : "r" (flags) : "memory"); } static inline int __raw_spin_trylock(raw_spinlock_t *lock) @@ -178,12 +183,12 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock) static inline void __raw_read_unlock(raw_rwlock_t *rw) { - asm volatile("lock ; 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 ; addl $" RW_LOCK_BIAS_STR ", %0" + asm volatile(LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ", %0" : "=m" (rw->lock) : : "memory"); } |