From 70930ecf50269d2360c8460fe53f42bd48258040 Mon Sep 17 00:00:00 2001
From: Mathieu Maret <mathieu.maret@gmail.com>
Date: Sun, 3 May 2020 23:14:40 +0200
Subject: [PATCH] Add comment for non-preempt kernel

---
 drivers/pit.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pit.c b/drivers/pit.c
index bcd491a..ba95765 100644
--- a/drivers/pit.c
+++ b/drivers/pit.c
@@ -1,9 +1,9 @@
 #include "pit.h"
 #include "io.h"
 #include "irq.h"
+#include "klibc.h"
 #include "kthread.h"
 #include "time.h"
-#include "klibc.h"
 
 int pitSetup(unsigned int freq)
 {
@@ -21,5 +21,7 @@ struct cpu_state *pitIrqHandler(struct cpu_state *prevCpu)
 {
     __atomic_add_fetch(&jiffies, 1, __ATOMIC_RELAXED);
     kthreadOnJieffiesTick();
+    // Uncomment for non-preemptible kernel
+    // return prevCpu;
     return kthreadSwitch(prevCpu);
 }