diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 5e2b26d..6b94969 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -466,7 +466,7 @@
 	struct task_struct *tsk;
 	struct address_space *mapping = page->mapping;
 
-	i_mmap_lock_write(mapping);
+	i_mmap_lock_read(mapping);
 	read_lock(&tasklist_lock);
 	for_each_process(tsk) {
 		pgoff_t pgoff = page_to_pgoff(page);
@@ -488,7 +488,7 @@
 		}
 	}
 	read_unlock(&tasklist_lock);
-	i_mmap_unlock_write(mapping);
+	i_mmap_unlock_read(mapping);
 }
 
 /*