moby--moby/pkg/mount/sharedsubtree_linux.go

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// +build linux
package mount
func MakePrivate(mountPoint string) error {
mounted, err := Mounted(mountPoint)
if err != nil {
return err
}
if !mounted {
if err := Mount(mountPoint, mountPoint, "none", "bind,rw"); err != nil {
return err
}
}
return ForceMount("", mountPoint, "none", "private")
}