Bump moby/buildkit

Signed-off-by: ulyssessouza <ulyssessouza@gmail.com>

vendor/github.com/containerd/continuity/hardlinks_unix.go

@@ -1,52 +0,0 @@
-// +build linux darwin freebsd solaris
-
-/*
-   Copyright The containerd Authors.
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-*/
-
-package continuity
-
-import (
-	"fmt"
-	"os"
-	"syscall"
-)
-
-// hardlinkKey provides a tuple-key for managing hardlinks. This is system-
-// specific.
-type hardlinkKey struct {
-	dev   uint64
-	inode uint64
-}
-
-// newHardlinkKey returns a hardlink key for the provided file info. If the
-// resource does not represent a possible hardlink, errNotAHardLink will be
-// returned.
-func newHardlinkKey(fi os.FileInfo) (hardlinkKey, error) {
-	sys, ok := fi.Sys().(*syscall.Stat_t)
-	if !ok {
-		return hardlinkKey{}, fmt.Errorf("cannot resolve (*syscall.Stat_t) from os.FileInfo")
-	}
-
-	if sys.Nlink < 2 {
-		// NOTE(stevvooe): This is not always true for all filesystems. We
-		// should somehow detect this and provided a slow "polyfill" that
-		// leverages os.SameFile if we detect a filesystem where link counts
-		// is not really supported.
-		return hardlinkKey{}, errNotAHardLink
-	}
-
-	return hardlinkKey{dev: uint64(sys.Dev), inode: uint64(sys.Ino)}, nil
-}