1 files changed, 10 insertions, 5 deletions

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 1a7c42c64ff4..5f2721b1e4be 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -461,15 +461,20 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 
         ret = do_writepages(mapping, wbc);
 
-        /* Don't write the inode if only I_DIRTY_PAGES was set */
-        if (dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) {
-                int err = write_inode(inode, wait);
+        /*
+         * Make sure to wait on the data before writing out the metadata.
+         * This is important for filesystems that modify metadata on data
+         * I/O completion.
+         */
+        if (wait) {
+                int err = filemap_fdatawait(mapping);
                 if (ret == 0)
                         ret = err;
         }
 
-        if (wait) {
-                int err = filemap_fdatawait(mapping);
+        /* Don't write the inode if only I_DIRTY_PAGES was set */
+        if (dirty & (I_DIRTY_SYNC | I_DIRTY_DATASYNC)) {
+                int err = write_inode(inode, wait);
                 if (ret == 0)
                         ret = err;
         }