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-rw-r--r--mm/rmap.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index dd43373a483f..710bb4b2adf1 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -822,7 +822,11 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
* Store the swap location in the pte.
* See handle_pte_fault() ...
*/
- swap_duplicate(entry);
+ if (swap_duplicate(entry) < 0) {
+ set_pte_at(mm, address, pte, pteval);
+ ret = SWAP_FAIL;
+ goto out_unmap;
+ }
if (list_empty(&mm->mmlist)) {
spin_lock(&mmlist_lock);
if (list_empty(&mm->mmlist))