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fix pthread_detach inadvertently acting as cancellation point in race case
[musl]
/
src
/
thread
/
pthread_barrier_wait.c
diff --git
a/src/thread/pthread_barrier_wait.c
b/src/thread/pthread_barrier_wait.c
index
06b83db
..
cc2a8bb
100644
(file)
--- a/
src/thread/pthread_barrier_wait.c
+++ b/
src/thread/pthread_barrier_wait.c
@@
-84,7
+84,7
@@
int pthread_barrier_wait(pthread_barrier_t *b)
a_spin();
a_inc(&inst->finished);
while (inst->finished == 1)
a_spin();
a_inc(&inst->finished);
while (inst->finished == 1)
- __syscall(SYS_futex,&inst->finished,FUTEX_WAIT|
128
,1,0) != -ENOSYS
+ __syscall(SYS_futex,&inst->finished,FUTEX_WAIT|
FUTEX_PRIVATE
,1,0) != -ENOSYS
|| __syscall(SYS_futex,&inst->finished,FUTEX_WAIT,1,0);
return PTHREAD_BARRIER_SERIAL_THREAD;
}
|| __syscall(SYS_futex,&inst->finished,FUTEX_WAIT,1,0);
return PTHREAD_BARRIER_SERIAL_THREAD;
}