From 21f353778d87da7cae6e03a1b6f953bce7c99b89 Mon Sep 17 00:00:00 2001
From: Matheus <matheusuky@gmail.com>
Date: Sat, 23 Jul 2022 00:13:01 -0300
Subject: [PATCH] spinlock change

add a pause instruction in order to not completely demolish the system bus in a lock
---
 src/include/kernel/spinlock.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/include/kernel/spinlock.h b/src/include/kernel/spinlock.h
index a6e88ff5..e8088030 100644
--- a/src/include/kernel/spinlock.h
+++ b/src/include/kernel/spinlock.h
@@ -1,8 +1,10 @@
 #ifndef _SPINLOCK_H_INCLUDE
 #define _SPINLOCK_H_INCLUDE
 
+// TODO rewrite this in a more arch independent way
+
 static inline void spinlock_acquire(int *lock){
-	while(!__sync_bool_compare_and_swap(lock, 0, 1));
+	while(!__sync_bool_compare_and_swap(lock, 0, 1)) asm("pause");
 }
 
 static inline void spinlock_release(int *lock){