diff options
| author | Brian Behlendorf <[email protected]> | 2010-08-27 13:36:24 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2010-08-27 14:23:48 -0700 |
| commit | d85e28ad69d87e63894308c34739da59420a582d (patch) | |
| tree | 92ddd4121eb7f653a0ee5019ed55ef856c31056c | |
| parent | 2b3543025cb2e61c55b4ba79a524d10fe951e3be (diff) | |
Add MUTEX_NOT_HELD() function
Simply implement the missing MUTEX_NOT_HELD() function using
the !MUTEX_HELD construct.
| -rw-r--r-- | include/sys/mutex.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/sys/mutex.h b/include/sys/mutex.h index ce8c0f4e9..97f49cb2a 100644 --- a/include/sys/mutex.h +++ b/include/sys/mutex.h @@ -57,7 +57,8 @@ mutex_owned(kmutex_t *mp) return (ACCESS_ONCE(mp->owner) == current_thread_info()); } -#define MUTEX_HELD(mp) mutex_owned(mp) +#define MUTEX_HELD(mp) mutex_owned(mp) +#define MUTEX_NOT_HELD(mp) (!MUTEX_HELD(mp)) #undef mutex_init #define mutex_init(mp, name, type, ibc) \ ({ \ @@ -150,6 +151,7 @@ mutex_owner(kmutex_t *mp) #define mutex_owned(mp) (mutex_owner(mp) == current) #define MUTEX_HELD(mp) mutex_owned(mp) +#define MUTEX_NOT_HELD(mp) (!MUTEX_HELD(mp)) /* * The following functions must be a #define and not static inline. |