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Detect change in underlying mounted disks (#7229)

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This commit is contained in:
Krishna Srinivas 2019-02-20 13:32:29 -08:00 committed by kannappanr
parent e098852a80
commit 6dd26b8231
1 changed files with 13 additions and 4 deletions
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17
cmd/posix.go
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@ -73,6 +73,7 @@ type posix struct {
diskMount bool // indicates if the path is an actual mount. diskMount bool // indicates if the path is an actual mount.
driveSync bool // indicates if the backend is synchronous. driveSync bool // indicates if the backend is synchronous.
diskFileInfo os.FileInfo
// Disk usage metrics // Disk usage metrics
stopUsageCh chan struct{} stopUsageCh chan struct{}
} }
@ -177,7 +178,10 @@ func newPosix(path string) (*posix, error) {
if path, err = getValidPath(path); err != nil { if path, err = getValidPath(path); err != nil {
return nil, err return nil, err
} }
fi, err := os.Stat(path)
if err != nil {
return nil, err
}
p := &posix{ p := &posix{
connected: true, connected: true,
diskPath: path, diskPath: path,
@ -188,8 +192,9 @@ func newPosix(path string) (*posix, error) {
return &b return &b
}, },
}, },
stopUsageCh: make(chan struct{}), stopUsageCh: make(chan struct{}),
diskMount: mountinfo.IsLikelyMountPoint(path), diskFileInfo: fi,
diskMount: mountinfo.IsLikelyMountPoint(path),
} }
var pf BoolFlag var pf BoolFlag
@ -351,7 +356,7 @@ func (s *posix) checkDiskFound() (err error) {
if !s.IsOnline() { if !s.IsOnline() {
return errDiskNotFound return errDiskNotFound
} }
_, err = os.Stat(s.diskPath) fi, err := os.Stat(s.diskPath)
if err != nil { if err != nil {
switch { switch {
case os.IsNotExist(err): case os.IsNotExist(err):
@ -364,6 +369,10 @@ func (s *posix) checkDiskFound() (err error) {
return err return err
} }
} }
if !os.SameFile(s.diskFileInfo, fi) {
s.connected = false
return errDiskNotFound
}
return nil return nil
} }