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Improve zfs init log message for zfs

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Signed-off-by: Drew Hubl <drew.hubl@gmail.com>
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This commit is contained in:
Drew Hubl 2017-07-24 01:23:45 -06:00 • committed by Brian Goff
parent be14665210
commit 27b002f4a0
1 changed files with 10 additions and 9 deletions
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19
daemon/graphdriver/zfs/zfs_linux.go
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@ -1,21 +1,22 @@
package zfs
import (
"fmt"
"github.com/docker/docker/daemon/graphdriver"
"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)
func checkRootdirFs(rootDir string) error {
fsMagic, err := graphdriver.GetFSMagic(rootDir)
if err != nil {
return err
}
backingFS := "unknown"
if fsName, ok := graphdriver.FsNames[fsMagic]; ok {
backingFS = fsName
}
if graphdriver.FsMagic(buf.Type) != graphdriver.FsMagicZfs {
logrus.Debugf("[zfs] no zfs dataset found for rootdir '%s'", rootdir)
if fsMagic != graphdriver.FsMagicZfs {
logrus.WithField("root", rootDir).WithField("backingFS", backingFS).WithField("driver", "zfs").Error("No zfs dataset found for root")
return graphdriver.ErrPrerequisites
}