diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index af1661f7a54..c7314f1771f 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -307,6 +307,8 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
 	}
 }
 
+#ifdef CONFIG_BLOCK
+
 /* Return 1 if 'cmd' will block on frozen filesystem */
 static int quotactl_cmd_write(int cmd)
 {
@@ -322,6 +324,8 @@ static int quotactl_cmd_write(int cmd)
 	return 1;
 }
 
+#endif /* CONFIG_BLOCK */
+
 /*
  * look up a superblock on which quota ops will be performed
  * - use the name of a block device to find the superblock thereon