diff options
Diffstat (limited to 'arch/powerpc/include/asm/simple_spinlock.h')
| -rw-r--r-- | arch/powerpc/include/asm/simple_spinlock.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/simple_spinlock.h b/arch/powerpc/include/asm/simple_spinlock.h index 5b862de29dff..552f325412cc 100644 --- a/arch/powerpc/include/asm/simple_spinlock.h +++ b/arch/powerpc/include/asm/simple_spinlock.h @@ -38,8 +38,7 @@ static __always_inline int arch_spin_value_unlocked(arch_spinlock_t lock) static inline int arch_spin_is_locked(arch_spinlock_t *lock) { - smp_mb(); - return !arch_spin_value_unlocked(*lock); + return !arch_spin_value_unlocked(READ_ONCE(*lock)); } /* @@ -282,7 +281,4 @@ static inline void arch_write_unlock(arch_rwlock_t *rw) #define arch_read_relax(lock) rw_yield(lock) #define arch_write_relax(lock) rw_yield(lock) -/* See include/linux/spinlock.h */ -#define smp_mb__after_spinlock() smp_mb() - #endif /* _ASM_POWERPC_SIMPLE_SPINLOCK_H */ |