1 files changed, 1 insertions, 3 deletions
diff --git a/yarn b/yarn
index 6845345..9847a68 100755
--- a/yarn
+++ b/yarn
@@ -317,10 +317,8 @@ class YarnRunner(cliapp.Application):
         return os.path.join(sd, base)
 
     def snapshot_datadir(self, tempdir, datadir, scenario, step_number, step):
-        # Use --reflink in case of CoW support, e.g., btrfs.
         snapshot = self.snapshot_dir(tempdir, scenario, step, step_number)
-        cliapp.runcmd(
-            ['cp', '-a', '--reflink=auto', datadir, snapshot])
+        cliapp.runcmd(['cp', '-a', datadir, snapshot])
 
     def nice(self, name):
         # Quote a scenario or step name so it forms a nice filename.