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Copy pathstat_linux.go
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50 lines (46 loc) · 1.49 KB
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// +build linux,!s390x,!arm,!386
/*
* MinIO Cloud Storage, (C) 2015, 2016, 2017 MinIO, Inc.
*
* 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 disk
import (
"fmt"
"syscall"
)
// 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
}