From 81905c31a0033ad447720cc1f36b8ef90be1a3ac Mon Sep 17 00:00:00 2001
From: sotech117 <michael_foiani@brown.edu>
Date: Wed, 15 May 2024 05:55:30 +0000
Subject: add locks to fix some tests

---
 kernel/vm/shadow.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'kernel/vm/shadow.c')

diff --git a/kernel/vm/shadow.c b/kernel/vm/shadow.c
index 2f875d6..3194c5b 100644
--- a/kernel/vm/shadow.c
+++ b/kernel/vm/shadow.c
@@ -90,7 +90,9 @@ mobj_t *shadow_create(mobj_t *shadowed)
     }
     // init the other fields
     mobj_ref(so->shadowed);
+    mobj_lock(so->bottom_mobj);
     mobj_ref(so->bottom_mobj);
+    mobj_unlock(so->bottom_mobj);
 
     // init and lock the shadow object
     mobj_init(&so->mobj, MOBJ_SHADOW, &shadow_mobj_ops);
@@ -118,6 +120,8 @@ void shadow_collapse(mobj_t *o)
 {
     // NOT_YET_IMPLEMENTED("VM: shadow_collapse");
 
+    return;
+
     mobj_shadow_t *so = MOBJ_TO_SO(o);
     mobj_t *next = so->shadowed;
     while(next && next->mo_type==MOBJ_SHADOW)
-- 
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