From 6375c175f702e0a448baaa1a030347f2bc1387e2 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Tue, 8 Sep 2020 13:52:45 -0600
Subject: [PATCH] Do not zero tables when not necessary in buddy allocator

---
 src/allocator/frame/buddy.rs | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/allocator/frame/buddy.rs b/src/allocator/frame/buddy.rs
index 654a8fb0e4..7d8fb0e8a6 100644
--- a/src/allocator/frame/buddy.rs
+++ b/src/allocator/frame/buddy.rs
@@ -102,9 +102,6 @@ impl<A: Arch> BuddyAllocator<A> {
                 for _ in 0 .. map_pages {
                     let map_phys = bump_allocator.allocate_one()?;
                     let map_virt = A::phys_to_virt(map_phys);
-                    for i in 0..Self::MAP_PAGE_BYTES {
-                        A::write(map_virt.add(i), 0);
-                    }
                     A::write(map_virt.add(Self::MAP_PAGE_BYTES), BuddyMapFooter {
                         next: entry.map,
                     });