github.com/jiasir/docker@v1.3.3-0.20170609024000-252e610103e7/daemon/graphdriver/zfs/zfs_linux.go (about)

     1  package zfs
     2  
     3  import (
     4  	"fmt"
     5  	"syscall"
     6  
     7  	"github.com/Sirupsen/logrus"
     8  	"github.com/docker/docker/daemon/graphdriver"
     9  )
    10  
    11  func checkRootdirFs(rootdir string) error {
    12  	var buf syscall.Statfs_t
    13  	if err := syscall.Statfs(rootdir, &buf); err != nil {
    14  		return fmt.Errorf("Failed to access '%s': %s", rootdir, err)
    15  	}
    16  
    17  	if graphdriver.FsMagic(buf.Type) != graphdriver.FsMagicZfs {
    18  		logrus.Debugf("[zfs] no zfs dataset found for rootdir '%s'", rootdir)
    19  		return graphdriver.ErrPrerequisites
    20  	}
    21  
    22  	return nil
    23  }
    24  
    25  func getMountpoint(id string) string {
    26  	return id
    27  }