diff options
Diffstat (limited to 'nptl/pthread_cond_signal.c')
| -rw-r--r-- | nptl/pthread_cond_signal.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/nptl/pthread_cond_signal.c b/nptl/pthread_cond_signal.c index f2de58fa1d..023bbb5e9b 100644 --- a/nptl/pthread_cond_signal.c +++ b/nptl/pthread_cond_signal.c @@ -32,8 +32,11 @@ int __pthread_cond_signal (cond) pthread_cond_t *cond; { + int pshared = (cond->__data.__mutex == (void *) ~0l) + ? LLL_SHARED : LLL_PRIVATE; + /* Make sure we are alone. */ - lll_lock (cond->__data.__lock, /* XYZ */ LLL_SHARED); + lll_lock (cond->__data.__lock, pshared); /* Are there any waiters to be woken? */ if (cond->__data.__total_seq > cond->__data.__wakeup_seq) @@ -45,18 +48,14 @@ __pthread_cond_signal (cond) /* Wake one. */ if (! __builtin_expect (lll_futex_wake_unlock (&cond->__data.__futex, 1, 1, &cond->__data.__lock, - // XYZ check mutex flag - LLL_SHARED), - 0)) + pshared), 0)) return 0; - lll_futex_wake (&cond->__data.__futex, 1, - // XYZ check mutex flag - LLL_SHARED); + lll_futex_wake (&cond->__data.__futex, 1, pshared); } /* We are done. */ - lll_unlock (cond->__data.__lock, /* XYZ */ LLL_SHARED); + lll_unlock (cond->__data.__lock, pshared); return 0; } |