diff options
Diffstat (limited to 'include/asm-alpha')
| -rw-r--r-- | include/asm-alpha/barrier.h | 2 | ||||
| -rw-r--r-- | include/asm-alpha/rwsem.h | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-alpha/barrier.h b/include/asm-alpha/barrier.h index 229c83fe77c..681ff581afa 100644 --- a/include/asm-alpha/barrier.h +++ b/include/asm-alpha/barrier.h @@ -1,6 +1,8 @@ #ifndef __BARRIER_H #define __BARRIER_H +#include <asm/compiler.h> + #define mb() \ __asm__ __volatile__("mb": : :"memory") diff --git a/include/asm-alpha/rwsem.h b/include/asm-alpha/rwsem.h index 8e058a67c9a..fafdd4f7010 100644 --- a/include/asm-alpha/rwsem.h +++ b/include/asm-alpha/rwsem.h @@ -262,5 +262,10 @@ static inline long rwsem_atomic_update(long val, struct rw_semaphore *sem) #endif } +static inline int rwsem_is_locked(struct rw_semaphore *sem) +{ + return (sem->count != 0); +} + #endif /* __KERNEL__ */ #endif /* _ALPHA_RWSEM_H */ |