Add mechanism to expose kernel variables to userspace via ProcFS.

Only booleans are supported at first. More types can be added easily.
Use this to add /proc/sys/wm_flash_flush which when enabled flashes pending
screen flush rects in yellow before they happen.

1 files changed, 2 insertions, 1 deletions

diff --git a/Kernel/MemoryManager.h b/Kernel/MemoryManager.h
index cd82206966..17b99fcfe1 100644
--- a/Kernel/MemoryManager.h
+++ b/Kernel/MemoryManager.h
@@ -15,6 +15,7 @@
 
 class Process;
 extern Process* current;
+class SynthFSInode;
 
 enum class PageFaultResponse {
     ShouldCrash,
@@ -166,7 +167,7 @@ class MemoryManager {
     friend class PhysicalPage;
     friend class Region;
     friend class VMObject;
-    friend ByteBuffer procfs$mm();
+    friend ByteBuffer procfs$mm(SynthFSInode&);
 public:
     static MemoryManager& the() PURE;