diff options
| -rw-r--r-- | src/thread/pthread_cond_broadcast.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/thread/pthread_cond_broadcast.c b/src/thread/pthread_cond_broadcast.c index 3daa7817..7e5ea91c 100644 --- a/src/thread/pthread_cond_broadcast.c +++ b/src/thread/pthread_cond_broadcast.c @@ -37,10 +37,11 @@ int pthread_cond_broadcast(pthread_cond_t *c) a_fetch_add(&m->_m_waiters, -w); } - /* Perform the futex requeue, waking one waiter if and only if - * the calling thread does not hold the mutex. */ + /* Perform the futex requeue, waking one waiter unless we know + * that the calling thread holds the mutex. */ __syscall(SYS_futex, &c->_c_block, FUTEX_REQUEUE, - m->_m_lock!=pthread_self()->tid, INT_MAX, &m->_m_lock); + !m->_m_type || (m->_m_lock&INT_MAX)!=pthread_self()->tid, + INT_MAX, &m->_m_lock); unlock(c); return 0; |