Kernel: Implement software context switching and Processor structure

Moving certain globals into a new Processor structure for
each CPU allows us to eventually run an instance of the
scheduler on each CPU.

2 files changed, 7 insertions, 8 deletions

diff --git a/Kernel/Tasks/FinalizerTask.cpp b/Kernel/Tasks/FinalizerTask.cpp
index 4b1f1ef738..554f2149c9 100644
--- a/Kernel/Tasks/FinalizerTask.cpp
+++ b/Kernel/Tasks/FinalizerTask.cpp
@@ -34,14 +34,12 @@ void FinalizerTask::spawn()
     Process::create_kernel_process(g_finalizer, "FinalizerTask", [] {
         Thread::current->set_priority(THREAD_PRIORITY_LOW);
         for (;;) {
-            {
-                InterruptDisabler disabler;
-                if (!g_finalizer_has_work)
-                    Thread::current->wait_on(*g_finalizer_wait_queue);
-                ASSERT(g_finalizer_has_work);
-                g_finalizer_has_work = false;
-            }
-            Thread::finalize_dying_threads();
+			dbg() << "Finalizer task is running";
+            Thread::current->wait_on(*g_finalizer_wait_queue);
+            
+            bool expected = true;
+            if (g_finalizer_has_work.compare_exchange_strong(expected, false, AK::MemoryOrder::memory_order_acq_rel))
+                Thread::finalize_dying_threads();
         }
     });
 }
diff --git a/Kernel/Tasks/SyncTask.cpp b/Kernel/Tasks/SyncTask.cpp
index f4d1dffafd..33f18c8b3a 100644
--- a/Kernel/Tasks/SyncTask.cpp
+++ b/Kernel/Tasks/SyncTask.cpp
@@ -35,6 +35,7 @@ void SyncTask::spawn()
 {
     Thread* syncd_thread = nullptr;
     Process::create_kernel_process(syncd_thread, "SyncTask", [] {
+        dbg() << "SyncTask is running";
         for (;;) {
             VFS::the().sync();
             Thread::current->sleep(1 * TimeManagement::the().ticks_per_second());