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-rw-r--r--mm/vmscan.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 8f326ce2b69..5e98b86feb7 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -804,6 +804,15 @@ int migrate_page(struct page *newpage, struct page *page)
migrate_page_copy(newpage, page);
+ /*
+ * Remove auxiliary swap entries and replace
+ * them with real ptes.
+ *
+ * Note that a real pte entry will allow processes that are not
+ * waiting on the page lock to use the new page via the page tables
+ * before the new page is unlocked.
+ */
+ remove_from_swap(newpage);
return 0;
}