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Merge pull request #14127 from vbatts/vbatts-dm-active-external

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pkg/devicemapper: external device activation
This commit is contained in:
Vincent Batts 2015-07-06 14:07:33 -04:00
commit 93d7feb003
1 changed files with 14 additions and 1 deletions
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15
devicemapper/devmapper.go
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@ -686,12 +686,25 @@ func DeleteDevice(poolName string, deviceId int) error {
}
func ActivateDevice(poolName string, name string, deviceId int, size uint64) error {
return activateDevice(poolName, name, deviceId, size, "")
}
func ActivateDeviceWithExternal(poolName string, name string, deviceId int, size uint64, external string) error {
return activateDevice(poolName, name, deviceId, size, external)
}
func activateDevice(poolName string, name string, deviceId int, size uint64, external string) error {
task, err := TaskCreateNamed(DeviceCreate, name)
if task == nil {
return err
}
params := fmt.Sprintf("%s %d", poolName, deviceId)
var params string
if len(external) > 0 {
params = fmt.Sprintf("%s %d %s", poolName, deviceId, external)
} else {
params = fmt.Sprintf("%s %d", poolName, deviceId)
}
if err := task.AddTarget(0, size/512, "thin", params); err != nil {
return fmt.Errorf("Can't add target %s", err)
}