ceph-csi/vendor/golang.org/x/sys/unix/dev_zos.go
dependabot[bot] dc655f03a8 rebase: bump the golang-dependencies group with 1 update
Bumps the golang-dependencies group with 1 update: [golang.org/x/sys](https://github.com/golang/sys).

- [Commits](https://github.com/golang/sys/compare/v0.13.0...v0.14.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sys
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: golang-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>
2023-11-10 07:28:10 +00:00

29 lines
830 B
Go

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build zos && s390x
// Functions to access/create device major and minor numbers matching the
// encoding used by z/OS.
//
// The information below is extracted and adapted from <sys/stat.h> macros.
package unix
// Major returns the major component of a z/OS device number.
func Major(dev uint64) uint32 {
return uint32((dev >> 16) & 0x0000FFFF)
}
// Minor returns the minor component of a z/OS device number.
func Minor(dev uint64) uint32 {
return uint32(dev & 0x0000FFFF)
}
// Mkdev returns a z/OS device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
return (uint64(major) << 16) | uint64(minor)
}