1 files changed, 2 insertions, 1 deletions

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 7262aacea8a2..c09ef5219cbe 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -836,7 +836,8 @@ void tag_pages_for_writeback(struct address_space *mapping,
                 spin_unlock_irq(&mapping->tree_lock);
                 WARN_ON_ONCE(tagged > WRITEBACK_TAG_BATCH);
                 cond_resched();
-        } while (tagged >= WRITEBACK_TAG_BATCH);
+                /* We check 'start' to handle wrapping when end == ~0UL */
+        } while (tagged >= WRITEBACK_TAG_BATCH && start);
 }
 EXPORT_SYMBOL(tag_pages_for_writeback);