diff options
Diffstat (limited to 'include/asm-powerpc/rwsem.h')
| -rw-r--r-- | include/asm-powerpc/rwsem.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-powerpc/rwsem.h b/include/asm-powerpc/rwsem.h index 0a5b83a3c94..79bae4933b7 100644 --- a/include/asm-powerpc/rwsem.h +++ b/include/asm-powerpc/rwsem.h @@ -159,5 +159,10 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem) return atomic_add_return(delta, (atomic_t *)(&sem->count)); } +static inline int rwsem_is_locked(struct rw_semaphore *sem) +{ + return (sem->count != 0); +} + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_RWSEM_H */ |