1 files changed, 6 insertions, 0 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 1e215fc36c83..2e7c8d980d5e 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -482,6 +482,12 @@ int filemap_write_and_wait_range(struct address_space *mapping,
 {
         int err = 0;
 
+        if (dax_mapping(mapping) && mapping->nrexceptional) {
+                err = dax_writeback_mapping_range(mapping, lstart, lend);
+                if (err)
+                        return err;
+        }
+
         if (mapping->nrpages) {
                 err = __filemap_fdatawrite_range(mapping, lstart, lend,
                                                  WB_SYNC_ALL);