--- a/src/backend/storage/page/bufpage.c
+++ b/src/backend/storage/page/bufpage.c
@@ -1546,3 +1546,23 @@ PageSetChecksumInplace(Page page, BlockNumber blkno)
 
 	((PageHeader) page)->pd_checksum = pg_checksum_page(page, blkno);
 }
+
+/*
+ * A helper to set multiple block's checksums.
+ */
+void
+PageSetBatchChecksumInplace(Page *pages, BlockNumber *blknos, uint32 length)