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-rw-r--r--sys/vm/vm_fault.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/vm/vm_fault.c b/sys/vm/vm_fault.c
index 1f6fd0b..318e9ba 100644
--- a/sys/vm/vm_fault.c
+++ b/sys/vm/vm_fault.c
@@ -295,7 +295,8 @@ RetryFault:;
VM_OBJECT_LOCK(fs.first_object);
vm_object_reference_locked(fs.first_object);
fs.vp = vnode_pager_lock(fs.first_object);
- mtx_unlock(&Giant);
+ if (debug_mpsafevm)
+ mtx_unlock(&Giant);
vm_object_pip_add(fs.first_object, 1);
fs.lookup_still_valid = TRUE;
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