diff options
Diffstat (limited to 'arch/sparc/include/asm/spinlock_64.h')
| -rw-r--r-- | arch/sparc/include/asm/spinlock_64.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h index 968917694978..87990b7c6b0d 100644 --- a/arch/sparc/include/asm/spinlock_64.h +++ b/arch/sparc/include/asm/spinlock_64.h @@ -8,6 +8,9 @@ #ifndef __ASSEMBLY__ +#include <asm/processor.h> +#include <asm/barrier.h> + /* To get debugging spinlocks which detect and catch * deadlock situations, set CONFIG_DEBUG_SPINLOCK * and rebuild your kernel. @@ -23,9 +26,10 @@ #define arch_spin_is_locked(lp) ((lp)->lock != 0) -#define arch_spin_unlock_wait(lp) \ - do { rmb(); \ - } while((lp)->lock) +static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) +{ + smp_cond_load_acquire(&lock->lock, !VAL); +} static inline void arch_spin_lock(arch_spinlock_t *lock) { |