normal	2018-01-03 06:23:47 +0900 (Wed, 03 Jan 2018)

  New Revision: 61573

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61573

  Log:
    thread_pthread.c: use container_of
    
    It's easier to read this macro from ccan than open-coding pointer
    arithmetic.
    
    thread_pthread.c (ubf_wakeup_all_threads): use container_of

  Modified files:
    trunk/thread_pthread.c
Index: thread_pthread.c
===================================================================
--- thread_pthread.c	(revision 61572)
+++ thread_pthread.c	(revision 61573)
@@ -1226,8 +1226,7 @@ ubf_wakeup_all_threads(void) https://github.com/ruby/ruby/blob/trunk/thread_pthread.c#L1226
     if (!ubf_threads_empty()) {
 	native_mutex_lock(&ubf_list_lock);
 	list_for_each(&ubf_list_head, dat, ubf_list) {
-	    th = (rb_thread_t *)(
-		((char *)dat) - offsetof(rb_thread_t, native_thread_data));
+	    th = container_of(dat, rb_thread_t, native_thread_data);
 	    ubf_wakeup_thread(th);
 	}
 	native_mutex_unlock(&ubf_list_lock);

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