diff options
Diffstat (limited to 'include/asm-xtensa/rwsem.h')
| -rw-r--r-- | include/asm-xtensa/rwsem.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/asm-xtensa/rwsem.h b/include/asm-xtensa/rwsem.h index 3c02b0e033f0..abcd86dc5ab9 100644 --- a/include/asm-xtensa/rwsem.h +++ b/include/asm-xtensa/rwsem.h @@ -172,4 +172,9 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem) return atomic_add_return(delta, (atomic_t *)(&sem->count)); } -#endif /* _XTENSA_RWSEM_XADD_H */ +static inline int rwsem_is_locked(struct rw_semaphore *sem) +{ + return (sem->count != 0); +} + +#endif /* _XTENSA_RWSEM_H */ |