Rework WindowServer to use select() in its main event loop.

The system can finally idle without burning CPU. :^)

There are some issues with scheduling making the mouse cursor sloppy
and unresponsive that need to be dealt with.

1 files changed, 2 insertions, 2 deletions

diff --git a/Kernel/MemoryManager.cpp b/Kernel/MemoryManager.cpp
index 37cb27619a..6618457f28 100644
--- a/Kernel/MemoryManager.cpp
+++ b/Kernel/MemoryManager.cpp
@@ -537,7 +537,7 @@ bool MemoryManager::validate_user_read(const Process& process, LinearAddress lad
     auto pte = PageTableEntry(&pde.pageTableBase()[pageTableIndex]);
     if (!pte.is_present())
         return false;
-    if (!pte.is_user_allowed())
+    if (process.isRing3() && !pte.is_user_allowed())
         return false;
     return true;
 }
@@ -552,7 +552,7 @@ bool MemoryManager::validate_user_write(const Process& process, LinearAddress la
     auto pte = PageTableEntry(&pde.pageTableBase()[pageTableIndex]);
     if (!pte.is_present())
         return false;
-    if (!pte.is_user_allowed())
+    if (process.isRing3() && !pte.is_user_allowed())
         return false;
     if (!pte.is_writable())
         return false;