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Use lazy umount on Put for overlay2 and overlay

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we see a lot of
```
level=debug msg="Failed to unmount a03b1bb6f569421857e5407d73d89451f92724674caa56bfc2170de7e585a00b-init overlay: device or resource busy"
```
in daemon logs and there is a lot of mountpoint leftover.
This cause failed to remove container.

Signed-off-by: Lei Jitang <leijitang@huawei.com>
This commit is contained in:
Lei Jitang 2017-06-12 09:07:25 -04:00
parent 3f6b6c2981
commit f65fa1f115
2 changed files with 2 additions and 2 deletions
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2
daemon/graphdriver/overlay/overlay.go
View file

@ -404,7 +404,7 @@ func (d *Driver) Put(id string) error {
if count := d.ctr.Decrement(mountpoint); count > 0 {
return nil
}
if err := syscall.Unmount(mountpoint, 0); err != nil {
if err := syscall.Unmount(mountpoint, syscall.MNT_DETACH); err != nil {
logrus.Debugf("Failed to unmount %s overlay: %v", id, err)
}
return nil

2
daemon/graphdriver/overlay2/overlay.go
View file

@ -587,7 +587,7 @@ func (d *Driver) Put(id string) error {
if count := d.ctr.Decrement(mountpoint); count > 0 {
return nil
}
if err := syscall.Unmount(mountpoint, 0); err != nil {
if err := syscall.Unmount(mountpoint, syscall.MNT_DETACH); err != nil {
logrus.Debugf("Failed to unmount %s overlay: %s - %v", id, mountpoint, err)
}
return nil