Update vendoring via vndr

gateway/vendor/github.com/prometheus/procfs/sysfs/fs.go

@@ -1,82 +0,0 @@
-// Copyright 2017 The Prometheus 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 sysfs
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-
-	"github.com/prometheus/procfs/xfs"
-)
-
-// FS represents the pseudo-filesystem sys, which provides an interface to
-// kernel data structures.
-type FS string
-
-// DefaultMountPoint is the common mount point of the sys filesystem.
-const DefaultMountPoint = "/sys"
-
-// NewFS returns a new FS mounted under the given mountPoint. It will error
-// if the mount point can't be read.
-func NewFS(mountPoint string) (FS, error) {
-	info, err := os.Stat(mountPoint)
-	if err != nil {
-		return "", fmt.Errorf("could not read %s: %s", mountPoint, err)
-	}
-	if !info.IsDir() {
-		return "", fmt.Errorf("mount point %s is not a directory", mountPoint)
-	}
-
-	return FS(mountPoint), nil
-}
-
-// Path returns the path of the given subsystem relative to the sys root.
-func (fs FS) Path(p ...string) string {
-	return filepath.Join(append([]string{string(fs)}, p...)...)
-}
-
-// XFSStats retrieves XFS filesystem runtime statistics for each mounted XFS
-// filesystem.  Only available on kernel 4.4+.  On older kernels, an empty
-// slice of *xfs.Stats will be returned.
-func (fs FS) XFSStats() ([]*xfs.Stats, error) {
-	matches, err := filepath.Glob(fs.Path("fs/xfs/*/stats/stats"))
-	if err != nil {
-		return nil, err
-	}
-
-	stats := make([]*xfs.Stats, 0, len(matches))
-	for _, m := range matches {
-		f, err := os.Open(m)
-		if err != nil {
-			return nil, err
-		}
-
-		// "*" used in glob above indicates the name of the filesystem.
-		name := filepath.Base(filepath.Dir(filepath.Dir(m)))
-
-		// File must be closed after parsing, regardless of success or
-		// failure.  Defer is not used because of the loop.
-		s, err := xfs.ParseStats(f)
-		_ = f.Close()
-		if err != nil {
-			return nil, err
-		}
-
-		s.Name = name
-		stats = append(stats, s)
-	}
-
-	return stats, nil
-}