From 51ad0de583015668df07b278ea4a8076e774b219 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Wed, 1 May 2024 21:59:57 -0400
Subject: kernel: vm_vnode: Ref the virtual memory object

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/vm/vm_vnode.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'sys/vm')

diff --git a/sys/vm/vm_vnode.c b/sys/vm/vm_vnode.c
index 707f7b4..e3d95ac 100644
--- a/sys/vm/vm_vnode.c
+++ b/sys/vm/vm_vnode.c
@@ -72,6 +72,7 @@ vn_pager_io(struct vm_object *obj, off_t off, size_t len,
     }
 
     spinlock_acquire(&obj->lock);
+    vm_object_ref(obj);
     dest = PHYS_TO_VIRT(pg->physaddr);
 
     /* Attempt to fetch the vnode */
@@ -95,6 +96,7 @@ vn_pager_io(struct vm_object *obj, off_t off, size_t len,
         goto done;
     }
 done:
+    vm_object_unref(obj);
     spinlock_release(&obj->lock);
     return res;
 }
-- 
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