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-rw-r--r--sys/vm/vm_page.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index 91da256..5075fce 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -445,7 +445,7 @@ void
vm_page_protect(vm_page_t mem, int prot)
{
if (prot == VM_PROT_NONE) {
- if (mem->flags & (PG_WRITEABLE|PG_MAPPED)) {
+ if (pmap_page_is_mapped(mem) || (mem->flags & PG_WRITEABLE)) {
pmap_page_protect(mem, VM_PROT_NONE);
vm_page_flag_clear(mem, PG_WRITEABLE|PG_MAPPED);
}
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