From 43f23cd7a2e92a00d74969e1ccc687f57df3f3cd Mon Sep 17 00:00:00 2001
From: uosfz <uosfz@student.kit.edu>
Date: Wed, 12 Feb 2025 20:05:05 +0100
Subject: [PATCH] disable interrupts while locked

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

diff --git a/src/sync.c b/src/sync.c
index 86235ae..c45eb30 100644
--- a/src/sync.c
+++ b/src/sync.c
@@ -1,11 +1,13 @@
 #include "sync.h"
 
 void spin_lock(struct spinlock *s) {
+    __asm__ ("cli" :: );
     while (atomic_exchange_explicit(&s->lock, 1, memory_order_acquire)) {
-        // spin
+        __asm__ ("pause" :: );
     }
 }
 
 void spin_unlock(struct spinlock *s) {
     atomic_store_explicit(&s->lock, 0, memory_order_release);
+    __asm__ ("sti" :: );
 }