Confine cleanup and use held session locks

internal/fileops/rename_noreplace_other.go

@@ -4,6 +4,7 @@ package fileops
 
 import (
 	"fmt"
+	"os"
 	"runtime"
 )
 
@@ -14,3 +15,7 @@ func checkAtomicDirectoryPromotionSupport() error {
 func renameDirectoryNoReplace(_, _ string) error {
 	return checkAtomicDirectoryPromotionSupport()
 }
+
+func renameDirectoryNoReplaceAt(_ *os.File, _, _ string) error {
+	return checkAtomicDirectoryPromotionSupport()
+}