diff options
Diffstat (limited to 'nptl/sysdeps/pthread/pthread_rwlock_rdlock.c')
| -rw-r--r-- | nptl/sysdeps/pthread/pthread_rwlock_rdlock.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/nptl/sysdeps/pthread/pthread_rwlock_rdlock.c b/nptl/sysdeps/pthread/pthread_rwlock_rdlock.c index b556ccfd1c..197af9c970 100644 --- a/nptl/sysdeps/pthread/pthread_rwlock_rdlock.c +++ b/nptl/sysdeps/pthread/pthread_rwlock_rdlock.c @@ -72,18 +72,16 @@ __pthread_rwlock_rdlock (rwlock) break; } + int waitval = rwlock->__data.__readers_wakeup; + /* Free the lock. */ lll_mutex_unlock (rwlock->__data.__lock); /* Wait for the writer to finish. */ - lll_futex_wait (&rwlock->__data.__readers_wakeup, 0); + lll_futex_wait (&rwlock->__data.__readers_wakeup, waitval); /* Get the lock. */ lll_mutex_lock (rwlock->__data.__lock); - - /* To start over again, remove the thread from the reader list. */ - if (--rwlock->__data.__nr_readers_queued == 0) - rwlock->__data.__readers_wakeup = 0; } /* We are done, free the lock. */ |