revert r35486 (add rb_thread_t#yeiling field). because it doesn't help

to close a race.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38062 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 5 deletions

diff --git a/thread.c b/thread.c
index 47ed9e0ed2..5a97b5202f 100644
--- a/thread.c
+++ b/thread.c
@@ -1047,10 +1047,8 @@ rb_thread_schedule_limits(unsigned long limits_us)
 
 	if (th->running_time_us >= limits_us) {
 	    thread_debug("rb_thread_schedule/switch start\n");
-	    th->yielding = 1;
 	    RB_GC_SAVE_MACHINE_CONTEXT(th);
 	    gvl_yield(th->vm, th);
-	    th->yielding = 0;
 	    rb_thread_set_current(th);
 	    thread_debug("rb_thread_schedule/switch done\n");
 	}
@@ -3635,9 +3633,7 @@ timer_thread_function(void *arg)
     rb_vm_t *vm = GET_VM(); /* TODO: fix me for Multi-VM */
 
     /* for time slice */
-    if (!vm->running_thread->yielding) {
-	RUBY_VM_SET_TIMER_INTERRUPT(vm->running_thread);
-    }
+    RUBY_VM_SET_TIMER_INTERRUPT(vm->running_thread);
 
     /* check signal */
     rb_threadptr_check_signal(vm->main_thread);