Merge pull request #45465 from corhere/backport-23.0/copy-xattr-notsupp

[23.0 backport] d/graphdriver/copy: support src fs w/o xattr support

daemon/graphdriver/copy/copy.go

@@ -5,6 +5,7 @@ package copy // import "github.com/docker/docker/daemon/graphdriver/copy"
 
 import (
 	"container/list"
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -90,6 +91,11 @@ func legacyCopy(srcFile io.Reader, dstFile io.Writer) error {
 func copyXattr(srcPath, dstPath, attr string) error {
 	data, err := system.Lgetxattr(srcPath, attr)
 	if err != nil {
+		if errors.Is(err, syscall.EOPNOTSUPP) {
+			// Task failed successfully: there is no xattr to copy
+			// if the source filesystem doesn't support xattrs.
+			return nil
+		}
 		return err
 	}
 	if data != nil {