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devmapper: Move base device creation in separate function

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This moves base device creation function in a separate function. Pure
code reorganization. Makes reading code little easier.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
Vivek Goyal 2015-10-06 08:38:03 -04:00
parent 1529343a3f
commit efc1ddd7e3
1 changed files with 34 additions and 25 deletions
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59
daemon/graphdriver/devmapper/deviceset.go
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@ -777,6 +777,38 @@ func (devices *DeviceSet) saveBaseDeviceUUID(baseInfo *devInfo) error {
return nil
}
func (devices *DeviceSet) createBaseImage() error {
logrus.Debugf("Initializing base device-mapper thin volume")
// Create initial device
info, err := devices.createRegisterDevice("")
if err != nil {
return err
}
logrus.Debugf("Creating filesystem on base device-mapper thin volume")
if err := devices.activateDeviceIfNeeded(info); err != nil {
return err
}
if err := devices.createFilesystem(info); err != nil {
return err
}
info.Initialized = true
if err := devices.saveMetadata(info); err != nil {
info.Initialized = false
return err
}
if err := devices.saveBaseDeviceUUID(info); err != nil {
return fmt.Errorf("Could not query and save base device UUID:%v", err)
}
return nil
}
func (devices *DeviceSet) setupBaseImage() error {
oldInfo, _ := devices.lookupDeviceWithLock("")
if oldInfo != nil && oldInfo.Initialized {
@ -817,34 +849,11 @@ func (devices *DeviceSet) setupBaseImage() error {
}
}
logrus.Debugf("Initializing base device-mapper thin volume")
// Create initial device
info, err := devices.createRegisterDevice("")
if err != nil {
// Create new base image device
if err := devices.createBaseImage(); err != nil {
return err
}
logrus.Debugf("Creating filesystem on base device-mapper thin volume")
if err := devices.activateDeviceIfNeeded(info); err != nil {
return err
}
if err := devices.createFilesystem(info); err != nil {
return err
}
info.Initialized = true
if err := devices.saveMetadata(info); err != nil {
info.Initialized = false
return err
}
if err := devices.saveBaseDeviceUUID(info); err != nil {
return fmt.Errorf("Could not query and save base device UUID:%v", err)
}
return nil
}