diff options
Diffstat (limited to 'arch/arm64/include/asm/spinlock.h')
| -rw-r--r-- | arch/arm64/include/asm/spinlock.h | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h index f445bd7f2b9f..95ad7102b63c 100644 --- a/arch/arm64/include/asm/spinlock.h +++ b/arch/arm64/include/asm/spinlock.h @@ -310,14 +310,7 @@ static inline int arch_read_trylock(arch_rwlock_t *rw) #define arch_read_relax(lock) cpu_relax() #define arch_write_relax(lock) cpu_relax() -/* - * Accesses appearing in program order before a spin_lock() operation - * can be reordered with accesses inside the critical section, by virtue - * of arch_spin_lock being constructed using acquire semantics. - * - * In cases where this is problematic (e.g. try_to_wake_up), an - * smp_mb__before_spinlock() can restore the required ordering. - */ -#define smp_mb__before_spinlock() smp_mb() +/* See include/linux/spinlock.h */ +#define smp_mb__after_spinlock() smp_mb() #endif /* __ASM_SPINLOCK_H */ |