From a70cc5ca1dc6ae0c64e734c0f234c75ab8a184dc Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 23 Feb 2020 09:28:31 +0100
Subject: [PATCH] Kernel: Commit the entire region up front in KBuffer::copy()

Since we know exactly how much physical memory we'll need, we might as
well commit it up front instead of letting page faults drive it.
---
 Kernel/KBuffer.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Kernel/KBuffer.h b/Kernel/KBuffer.h
index 0b529b821e9..dd39544e067 100644
--- a/Kernel/KBuffer.h
+++ b/Kernel/KBuffer.h
@@ -56,6 +56,7 @@ public:
     static NonnullRefPtr<KBufferImpl> copy(const void* data, size_t size, u8 access, const char* name)
     {
         auto buffer = create_with_size(size, access, name);
+        buffer->region().commit();
         memcpy(buffer->data(), data, size);
         return buffer;
     }