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-rw-r--r--mm/rmap.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index 28c6cf96d3c..f5a6966b7eb 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -527,6 +527,8 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma)
* If the page is mlock()d, we cannot swap it out.
* If it's recently referenced (perhaps page_referenced
* skipped over this mm) then we should reactivate it.
+ *
+ * Pages belonging to VM_RESERVED regions should not happen here.
*/
if ((vma->vm_flags & (VM_LOCKED|VM_RESERVED)) ||
ptep_clear_flush_young(vma, address, pte)) {