diff options
Diffstat (limited to 'arch/powerpc/include/asm/spinlock.h')
| -rw-r--r-- | arch/powerpc/include/asm/spinlock.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h index 5f54a744dcc5..826be86c4248 100644 --- a/arch/powerpc/include/asm/spinlock.h +++ b/arch/powerpc/include/asm/spinlock.h @@ -28,8 +28,6 @@ #include <asm/synch.h> #include <asm/ppc-opcode.h> -#define arch_spin_is_locked(x) ((x)->slock != 0) - #ifdef CONFIG_PPC64 /* use 0x800000yy when locked, where yy == CPU number */ #ifdef __BIG_ENDIAN__ @@ -54,6 +52,12 @@ #define SYNC_IO #endif +static inline int arch_spin_is_locked(arch_spinlock_t *lock) +{ + smp_mb(); + return lock->slock != 0; +} + /* * This returns the old value in the lock, so we succeeded * in getting the lock if the return value is 0. |