From 39c2df0b56edc765613764cc1d42f2de8060dc24 Mon Sep 17 00:00:00 2001
From: Nathaniel Wesley Filardo <nfilardo@microsoft.com>
Date: Tue, 13 Jul 2021 13:25:01 +0100
Subject: [PATCH] pagemap: don't eagerly commit on LazyCommit PALs

---
 src/backend/pagemap.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/backend/pagemap.h b/src/backend/pagemap.h
index 688e51d..843e8df 100644
--- a/src/backend/pagemap.h
+++ b/src/backend/pagemap.h
@@ -129,7 +129,7 @@ namespace snmalloc
       }
 
       //  This means external pointer on Windows will be slow.
-      if constexpr (potentially_out_of_range)
+      if constexpr (potentially_out_of_range && !pal_supports<LazyCommit, PAL>)
       {
         commit_entry(&body[p >> SHIFT]);
       }