minio/internal/disk/stat_linux_s390x.go

84 lines
2.4 KiB
Go

//go:build linux && s390x
// +build linux,s390x
// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package disk
import (
"fmt"
"strconv"
"syscall"
)
// fsType2StringMap - list of filesystems supported on linux
var fsType2StringMap = map[string]string{
"1021994": "TMPFS",
"137d": "EXT",
"4244": "HFS",
"4d44": "MSDOS",
"52654973": "REISERFS",
"5346544e": "NTFS",
"58465342": "XFS",
"61756673": "AUFS",
"6969": "NFS",
"ef51": "EXT2OLD",
"ef53": "EXT4",
"f15f": "ecryptfs",
"794c7630": "overlayfs",
"2fc12fc1": "zfs",
"ff534d42": "cifs",
"53464846": "wslfs",
}
// getFSType returns the filesystem type of the underlying mounted filesystem
func getFSType(ftype uint32) string {
fsTypeHex := strconv.FormatUint(uint64(ftype), 16)
fsTypeString, ok := fsType2StringMap[fsTypeHex]
if !ok {
return "UNKNOWN"
}
return fsTypeString
}
// GetInfo returns total and free bytes available in a directory, e.g. `/`.
func GetInfo(path string) (info Info, err error) {
s := syscall.Statfs_t{}
err = syscall.Statfs(path, &s)
if err != nil {
return Info{}, err
}
reservedBlocks := s.Bfree - s.Bavail
info = Info{
Total: uint64(s.Frsize) * (s.Blocks - reservedBlocks),
Free: uint64(s.Frsize) * s.Bavail,
Files: s.Files,
Ffree: s.Ffree,
FSType: getFSType(s.Type),
}
// Check for overflows.
// https://github.com/minio/minio/issues/8035
// XFS can show wrong values at times error out
// in such scenarios.
if info.Free > info.Total {
return info, fmt.Errorf("detected free space (%d) > total disk space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
}
info.Used = info.Total - info.Free
return info, nil
}