34 lines
945 B
Go
34 lines
945 B
Go
package zfs
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
graphdriver "github.com/containers/storage/drivers"
|
|
"github.com/sirupsen/logrus"
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
func checkRootdirFs(rootdir string) error {
|
|
var buf unix.Statfs_t
|
|
if err := unix.Statfs(rootdir, &buf); err != nil {
|
|
return fmt.Errorf("failed to access '%s': %s", rootdir, err)
|
|
}
|
|
|
|
// on FreeBSD buf.Fstypename contains ['z', 'f', 's', 0 ... ]
|
|
if (buf.Fstypename[0] != 122) || (buf.Fstypename[1] != 102) || (buf.Fstypename[2] != 115) || (buf.Fstypename[3] != 0) {
|
|
logrus.WithField("storage-driver", "zfs").Debugf("no zfs dataset found for rootdir '%s'", rootdir)
|
|
return fmt.Errorf("no zfs dataset found for rootdir '%s': %w", rootdir, graphdriver.ErrPrerequisites)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func getMountpoint(id string) string {
|
|
return id
|
|
}
|
|
|
|
func detachUnmount(mountpoint string) error {
|
|
// FreeBSD's MNT_FORCE is roughly equivalent to MNT_DETACH
|
|
return unix.Unmount(mountpoint, unix.MNT_FORCE)
|
|
}
|