diff --git a/fs/afs/write.c b/fs/afs/write.c
index 1ed62e0ccfe57c703cc61d220b98ed22432fed2f..c0534697268ef808e42e6a5762c44888e3148a3b 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -784,7 +784,7 @@ int afs_writepages(struct address_space *mapping,
 	} else if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) {
 		ret = afs_writepages_region(mapping, wbc, 0, LLONG_MAX, &next);
 		if (wbc->nr_to_write > 0 && ret == 0)
-			mapping->writeback_index = next;
+			mapping->writeback_index = next / PAGE_SIZE;
 	} else {
 		ret = afs_writepages_region(mapping, wbc,
 					    wbc->range_start, wbc->range_end, &next);