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// +build linux,cgo
package overlay
import (
"path"
"github.com/containers/storage/pkg/directory"
)
// ReadWriteDiskUsage returns the disk usage of the writable directory for the ID.
// For Overlay, it attempts to check the XFS quota for size, and falls back to
// finding the size of the "diff" directory.
func (d *Driver) ReadWriteDiskUsage(id string) (*directory.DiskUsage, error) {
usage := &directory.DiskUsage{}
if d.quotaCtl != nil {
err := d.quotaCtl.GetDiskUsage(d.dir(id), usage)
return usage, err
}
return directory.Usage(path.Join(d.dir(id), "diff"))
}
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