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Merge pull request #27753 from tonistiigi/fix-overlay-unmount

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Fix overlay unmount for the root case
This commit is contained in:
Michael Crosby 2016-11-10 13:14:45 -08:00 • committed by GitHub
commit 1883b73a57
1 changed files with 4 additions and 0 deletions
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4
daemon/graphdriver/overlay/overlay.go
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@ -389,6 +389,10 @@ func (d *Driver) Get(id string, mountLabel string) (s string, err error) {
// Put unmounts the mount path created for the give id. // Put unmounts the mount path created for the give id.
func (d *Driver) Put(id string) error { func (d *Driver) Put(id string) error {
// If id has a root, just return
if _, err := os.Stat(path.Join(d.dir(id), "root")); err == nil {
return nil
}
mountpoint := path.Join(d.dir(id), "merged") mountpoint := path.Join(d.dir(id), "merged")
if count := d.ctr.Decrement(mountpoint); count > 0 { if count := d.ctr.Decrement(mountpoint); count > 0 {
return nil return nil