hurd: Add __pthread_spin_wait and use it

900778283ac3 ("htl: make pthread_spin_lock really spin") made
pthread_spin_lock really spin and not block, but the current users of
__pthread_spin_lock were assuming that it blocks, i.e. they use it as a
lightweight mutex fitting in just one int.

__pthread_spin_wait provides that support back.

1 files changed, 1 insertions, 1 deletions

diff --git a/sysdeps/htl/pt-cond-destroy.c b/sysdeps/htl/pt-cond-destroy.c
index b28e7e1ada..57c2682484 100644
--- a/sysdeps/htl/pt-cond-destroy.c
+++ b/sysdeps/htl/pt-cond-destroy.c
@@ -24,7 +24,7 @@ __pthread_cond_destroy (pthread_cond_t *cond)
 {
   int ret = 0;
 
-  __pthread_spin_lock (&cond->__lock);
+  __pthread_spin_wait (&cond->__lock);
   if (cond->__queue)
     ret = EBUSY;
   __pthread_spin_unlock (&cond->__lock);