vfs: switch i_dentry/d_alias to hlist

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 4359a4d..2a1dcea 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -225,7 +225,7 @@
 
 	if (!journal) {
 		ret = __sync_inode(inode, datasync);
-		if (!ret && !list_empty(&inode->i_dentry))
+		if (!ret && !hlist_empty(&inode->i_dentry))
 			ret = ext4_sync_parent(inode);
 		goto out;
 	}