From 137b51e4d3dff93e0101f776ac05af63aca9b778 Mon Sep 17 00:00:00 2001
From: John Hawthorn <john.hawthorn@shopify.com>
Date: Wed, 2 Apr 2025 12:03:44 -0700
Subject: [PATCH] Remove rb_gc_start from cancel_single_ractor_mode

In 307732ccee7f9f28f8422bab2f839da021d8cdec Ractors were changed to
explicitly run GC when the first non-main one was activated in order to
disable the transient heap. Theap no longer exists so I don't think we
need to do this.
---
 ractor.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/ractor.c b/ractor.c
index 46390a1749..d8a22c0927 100644
--- a/ractor.c
+++ b/ractor.c
@@ -1980,14 +1980,6 @@ cancel_single_ractor_mode(void)
     // enable multi-ractor mode
     RUBY_DEBUG_LOG("enable multi-ractor mode");
 
-    VALUE was_disabled = rb_gc_enable();
-
-    rb_gc_start();
-
-    if (was_disabled) {
-        rb_gc_disable();
-    }
-
     ruby_single_main_ractor = NULL;
     rb_funcall(rb_cRactor, rb_intern("_activated"), 0);
 }