diff options
Diffstat (limited to 'include/asm-ppc/semaphore.h')
| -rw-r--r-- | include/asm-ppc/semaphore.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/include/asm-ppc/semaphore.h b/include/asm-ppc/semaphore.h index 92063a868..da81ad23e 100644 --- a/include/asm-ppc/semaphore.h +++ b/include/asm-ppc/semaphore.h @@ -119,20 +119,21 @@ struct rw_semaphore #endif }; -#define __RWSEM_INITIALIZER(name, rd, wr) \ +#define RW_LOCK_BIAS 2 /* XXX bogus */ +#define __RWSEM_INITIALIZER(name, count) \ { \ SPIN_LOCK_UNLOCKED, \ - (rd), (wr), \ + (count) == 1, (count) == 0, \ __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \ __SEM_DEBUG_INIT(name) \ } -#define __DECLARE_RWSEM_GENERIC(name, rd, wr) \ - struct rw_semaphore name = __RWSEM_INITIALIZER(name, rd, wr) +#define __DECLARE_RWSEM_GENERIC(name, count) \ + struct rw_semaphore name = __RWSEM_INITIALIZER(name, count) -#define DECLARE_RWSEM(name) __DECLARE_RWSEM_GENERIC(name, 0, 0) -#define DECLARE_RWSEM_READ_LOCKED(name) __DECLARE_RWSEM_GENERIC(name, 1, 0) -#define DECLAER_RWSEM_WRITE_LOCKED(name) __DECLARE_RWSEM_GENERIC(name, 0, 1) +#define DECLARE_RWSEM(name) __DECLARE_RWSEM_GENERIC(name, RW_LOCK_BIAS) +#define DECLARE_RWSEM_READ_LOCKED(name) __DECLARE_RWSEM_GENERIC(name, RW_LOCK_BIAS-1) +#define DECLARE_RWSEM_WRITE_LOCKED(name) __DECLARE_RWSEM_GENERIC(name, 0) extern inline void init_rwsem(struct rw_semaphore *sem) { |