1 files changed, 6 insertions, 0 deletions
diff --git a/spinlock.h b/spinlock.h
new file mode 100644
index 0000000..ee0a26c
--- /dev/null
+++ b/spinlock.h
@@ -0,0 +1,6 @@
+struct spinlock {
+  unsigned int locked;
+  struct proc *p;
+  int count;
+  unsigned locker_pc;
+};