diff options
Diffstat (limited to 'nptl/sysdeps/pthread/pthread_rwlock_wrlock.c')
| -rw-r--r-- | nptl/sysdeps/pthread/pthread_rwlock_wrlock.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c b/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c index 024b6711a9..03c37a1933 100644 --- a/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c +++ b/nptl/sysdeps/pthread/pthread_rwlock_wrlock.c @@ -63,18 +63,19 @@ __pthread_rwlock_wrlock (rwlock) break; } + int waitval = rwlock->__data.__writer_wakeup; + /* Free the lock. */ lll_mutex_unlock (rwlock->__data.__lock); /* Wait for the writer or reader(s) to finish. */ - lll_futex_wait (&rwlock->__data.__writer_wakeup, 0); + lll_futex_wait (&rwlock->__data.__writer_wakeup, waitval); /* Get the lock. */ lll_mutex_lock (rwlock->__data.__lock); /* To start over again, remove the thread from the writer list. */ --rwlock->__data.__nr_writers_queued; - rwlock->__data.__writer_wakeup = 0; } /* We are done, free the lock. */ |