diff options
| -rw-r--r-- | sys/sys/mutex.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sys/sys/mutex.h b/sys/sys/mutex.h index 3942a5a..b2b678e 100644 --- a/sys/sys/mutex.h +++ b/sys/sys/mutex.h @@ -124,19 +124,19 @@ void _mtx_assert(struct mtx *m, int what, const char *file, int line); * here, if they are not already defined in the machine-dependent mutex.h */ -/* Actually obtain mtx_lock */ +/* Try to obtain mtx_lock once. */ #ifndef _obtain_lock #define _obtain_lock(mp, tid) \ atomic_cmpset_acq_ptr(&(mp)->mtx_lock, (void *)MTX_UNOWNED, (tid)) #endif -/* Actually release mtx_lock */ +/* Try to release mtx_lock if it is unrecursed and uncontested. */ #ifndef _release_lock #define _release_lock(mp, tid) \ atomic_cmpset_rel_ptr(&(mp)->mtx_lock, (tid), (void *)MTX_UNOWNED) #endif -/* Actually release mtx_lock quickly, assuming we own it. */ +/* Release mtx_lock quickly, assuming we own it. */ #ifndef _release_lock_quick #define _release_lock_quick(mp) \ atomic_store_rel_ptr(&(mp)->mtx_lock, (void *)MTX_UNOWNED) |
