pass pc-struct instead of list_elem from child to parent

1 files changed, 3 insertions, 3 deletions

diff --git a/src/userprog/process.c b/src/userprog/process.c
index 5f7448b..e99374b 100644
--- a/src/userprog/process.c
+++ b/src/userprog/process.c
@@ -28,7 +28,7 @@ struct start_process_args
 
     // child -> parent
     bool success;
-    struct list_elem *child_elem;  // list_elem to insert into list of children
+    struct parent_child *child;
   };
 
 static thread_func start_process NO_RETURN;
@@ -68,7 +68,7 @@ process_execute (const char *file_name)
     sema_down (&args.sema);
 
     if (args.success) {
-      list_push_back (&t->children, args.child_elem);
+      list_push_back (&t->children, &args.child->elem);
     } else {
       tid = -1;
     }
@@ -101,7 +101,7 @@ start_process (void *args_)
     sema_init (&t->parent.exit_sema, 0);
     lock_init (&t->parent.l);
 
-    args->child_elem = &t->parent.elem;
+    args->child = &t->parent;
   }
 
   sema_up (&args->sema);