ceph-csi/vendor/golang.org/x/sys/unix/dev_zos.go
Madhu Rajanna fb7dc13dfe rebase: update packages in go.mod to latest releases
updated few packages in go.mod to latest
available release.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2021-06-04 11:52:22 +00:00

30 lines
850 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
// +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)
}