Rename ProcessInspectionScope to ProcessInspectionHandle.

It might be useful to pass these things around.

Kernel/ProcFileSystem.cpp

@@ -30,7 +30,7 @@ ProcFileSystem::~ProcFileSystem()
 
 ByteBuffer procfs$pid_fds(Process& process)
 {
-    ProcessInspectionScope scope(process);
+    ProcessInspectionHandle handle(process);
     char* buffer;
     auto stringImpl = StringImpl::createUninitialized(process.number_of_open_file_descriptors() * 80, buffer);
     memset(buffer, 0, stringImpl->length());
@@ -47,7 +47,7 @@ ByteBuffer procfs$pid_fds(Process& process)
 
 ByteBuffer procfs$pid_vm(Process& process)
 {
-    ProcessInspectionScope scope(process);
+    ProcessInspectionHandle handle(process);
     char* buffer;
     auto stringImpl = StringImpl::createUninitialized(80 + process.regionCount() * 160 + 4096, buffer);
     memset(buffer, 0, stringImpl->length());
@@ -80,7 +80,7 @@ ByteBuffer procfs$pid_vm(Process& process)
 
 ByteBuffer procfs$pid_stack(Process& process)
 {
-    ProcessInspectionScope scope(process);
+    ProcessInspectionHandle handle(process);
     ProcessPagingScope pagingScope(process);
     struct RecognizedSymbol {
         dword address;
@@ -112,7 +112,7 @@ ByteBuffer procfs$pid_stack(Process& process)
 
 ByteBuffer procfs$pid_regs(Process& process)
 {
-    ProcessInspectionScope scope(process);
+    ProcessInspectionHandle handle(process);
     auto& tss = process.tss();
     auto buffer = ByteBuffer::createUninitialized(1024);
     char* ptr = (char*)buffer.pointer();
@@ -133,7 +133,7 @@ ByteBuffer procfs$pid_regs(Process& process)
 
 ByteBuffer procfs$pid_exe(Process& process)
 {
-    ProcessInspectionScope scope(process);
+    ProcessInspectionHandle handle(process);
     auto inode = process.executableInode();
     return VirtualFileSystem::the().absolutePath(inode).toByteBuffer();
 }
@@ -285,7 +285,6 @@ ByteBuffer procfs$cpuinfo()
 
 ByteBuffer procfs$kmalloc()
 {
-    InterruptDisabler disabler;
     auto buffer = ByteBuffer::createUninitialized(256);
     char* ptr = (char*)buffer.pointer();
     ptr += ksprintf(ptr, "eternal:      %u\npage-aligned: %u\nallocated:    %u\nfree:         %u\n", kmalloc_sum_eternal, sum_alloc, sum_free);
@@ -326,6 +325,7 @@ ByteBuffer procfs$vnodes()
     char* ptr = (char*)buffer.pointer();
     for (size_t i = 0; i < vfs.m_maxNodeCount; ++i) {
         auto& vnode = vfs.m_nodes[i];
+        // FIXME: Retain the vnode while inspecting it.
         if (!vnode.inUse())
             continue;
         auto path = vfs.absolutePath(vnode.inode);

Kernel/Process.h

@@ -288,19 +288,25 @@ private:
     Region* m_signal_stack_kernel_region { nullptr };
 };
 
-class ProcessInspectionScope {
+extern Process* current;
+
+class ProcessInspectionHandle {
 public:
-    ProcessInspectionScope(Process& process)
+    ProcessInspectionHandle(Process& process)
         : m_process(process)
         , m_original_state(process.state())
     {
-        m_process.set_state(Process::BeingInspected);
+        if (&process != current)
+            m_process.set_state(Process::BeingInspected);
     }
 
-    ~ProcessInspectionScope()
+    ~ProcessInspectionHandle()
     {
         m_process.set_state(m_original_state);
     }
+
+    Process* operator->() { return &m_process; }
+    Process& operator*() { return m_process; }
 private:
     Process& m_process;
     Process::State m_original_state { Process::Invalid };