diff options
Diffstat (limited to 'arch/powerpc/include/asm/rwsem.h')
| -rw-r--r-- | arch/powerpc/include/asm/rwsem.h | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/powerpc/include/asm/rwsem.h b/arch/powerpc/include/asm/rwsem.h index 8447d89fbe7..bb1e2cdeb9b 100644 --- a/arch/powerpc/include/asm/rwsem.h +++ b/arch/powerpc/include/asm/rwsem.h @@ -13,11 +13,6 @@ * by Paul Mackerras <paulus@samba.org>. */ -#include <linux/list.h> -#include <linux/spinlock.h> -#include <asm/atomic.h> -#include <asm/system.h> - /* * the semaphore definition */ @@ -33,47 +28,6 @@ #define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS #define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS) -struct rw_semaphore { - long count; - spinlock_t wait_lock; - struct list_head wait_list; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lockdep_map dep_map; -#endif -}; - -#ifdef CONFIG_DEBUG_LOCK_ALLOC -# define __RWSEM_DEP_MAP_INIT(lockname) , .dep_map = { .name = #lockname } -#else -# define __RWSEM_DEP_MAP_INIT(lockname) -#endif - -#define __RWSEM_INITIALIZER(name) \ -{ \ - RWSEM_UNLOCKED_VALUE, \ - __SPIN_LOCK_UNLOCKED((name).wait_lock), \ - LIST_HEAD_INIT((name).wait_list) \ - __RWSEM_DEP_MAP_INIT(name) \ -} - -#define DECLARE_RWSEM(name) \ - struct rw_semaphore name = __RWSEM_INITIALIZER(name) - -extern struct rw_semaphore *rwsem_down_read_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_down_write_failed(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem); -extern struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem); - -extern void __init_rwsem(struct rw_semaphore *sem, const char *name, - struct lock_class_key *key); - -#define init_rwsem(sem) \ - do { \ - static struct lock_class_key __key; \ - \ - __init_rwsem((sem), #sem, &__key); \ - } while (0) - /* * lock for reading */ @@ -174,10 +128,5 @@ static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem) return atomic_long_add_return(delta, (atomic_long_t *)&sem->count); } -static inline int rwsem_is_locked(struct rw_semaphore *sem) -{ - return sem->count != 0; -} - #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_RWSEM_H */ |