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Merge pull request #869 from abperiasamy/donut-check

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remove mount-point requirement
This commit is contained in:
Anand Babu (AB) Periasamy 2015-09-23 12:33:57 -07:00
commit 7b934a7c6c
1 changed files with 12 additions and 20 deletions
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32
donut-disks.go
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@ -17,39 +17,31 @@
package main
import (
"fmt"
"io/ioutil"
"os"
"syscall"
"github.com/minio/minio/pkg/probe"
)
// isUsable provides a comprehensive way of knowing if the provided mountPath is mounted and writable
func isUsable(mountPath string) (bool, *probe.Error) {
mntpoint, err := os.Stat(mountPath)
if err != nil {
return false, probe.NewError(err)
_, e := os.Stat(mountPath)
if e != nil {
e := os.MkdirAll(mountPath, 0700)
if e != nil {
return false, probe.NewError(e)
}
}
parent, err := os.Stat("/")
if err != nil {
return false, probe.NewError(err)
}
mntpointSt := mntpoint.Sys().(*syscall.Stat_t)
parentSt := parent.Sys().(*syscall.Stat_t)
if mntpointSt.Dev == parentSt.Dev {
return false, probe.NewError(fmt.Errorf("Not mounted %s", mountPath))
testFile, e := ioutil.TempFile(mountPath, "writetest-")
if e != nil {
return false, probe.NewError(e)
}
testFile, err := ioutil.TempFile(mountPath, "writetest-")
if err != nil {
return false, probe.NewError(err)
}
// close the file, to avoid leaky fd's
defer testFile.Close()
testFileName := testFile.Name()
if err := os.Remove(testFileName); err != nil {
return false, probe.NewError(err)
if e := os.Remove(testFileName); e != nil {
return false, probe.NewError(e)
}
return true, nil
}