зеркало из https://github.com/microsoft/docker.git
Merge pull request #8986 from vbatts/vbatts-pkg_devicemapper_bindings
devicemapper: split out devicemapper bindings
This commit is contained in:
Vincent Batts
Коммит
42861f3b45
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@ -20,6 +20,7 @@ import (
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log "github.com/Sirupsen/logrus"
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"github.com/docker/docker/daemon/graphdriver"
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"github.com/docker/docker/pkg/devicemapper"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/docker/pkg/units"
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"github.com/docker/libcontainer/label"
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@ -243,7 +244,7 @@ func (devices *DeviceSet) saveMetadata(info *DevInfo) error {
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}
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if devices.NewTransactionId != devices.TransactionId {
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if err = setTransactionId(devices.getPoolDevName(), devices.TransactionId, devices.NewTransactionId); err != nil {
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if err = devicemapper.SetTransactionId(devices.getPoolDevName(), devices.TransactionId, devices.NewTransactionId); err != nil {
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return fmt.Errorf("Error setting devmapper transition ID: %s", err)
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}
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devices.TransactionId = devices.NewTransactionId
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@ -295,11 +296,11 @@ func (devices *DeviceSet) registerDevice(id int, hash string, size uint64) (*Dev
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func (devices *DeviceSet) activateDeviceIfNeeded(info *DevInfo) error {
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log.Debugf("activateDeviceIfNeeded(%v)", info.Hash)
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if devinfo, _ := getInfo(info.Name()); devinfo != nil && devinfo.Exists != 0 {
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if devinfo, _ := devicemapper.GetInfo(info.Name()); devinfo != nil && devinfo.Exists != 0 {
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return nil
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}
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return activateDevice(devices.getPoolDevName(), info.Name(), info.DeviceId, info.Size)
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return devicemapper.ActivateDevice(devices.getPoolDevName(), info.Name(), info.DeviceId, info.Size)
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}
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func (devices *DeviceSet) createFilesystem(info *DevInfo) error {
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@ -336,7 +337,7 @@ func (devices *DeviceSet) createFilesystem(info *DevInfo) error {
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}
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func (devices *DeviceSet) initMetaData() error {
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_, _, _, params, err := getStatus(devices.getPoolName())
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_, _, _, params, err := devicemapper.GetStatus(devices.getPoolName())
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if err != nil {
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return err
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}
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@ -415,7 +416,7 @@ func (devices *DeviceSet) setupBaseImage() error {
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id := devices.NextDeviceId
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// Create initial device
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if err := createDevice(devices.getPoolDevName(), &id); err != nil {
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if err := devicemapper.CreateDevice(devices.getPoolDevName(), &id); err != nil {
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return err
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}
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@ -425,7 +426,7 @@ func (devices *DeviceSet) setupBaseImage() error {
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log.Debugf("Registering base device (id %v) with FS size %v", id, devices.baseFsSize)
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info, err := devices.registerDevice(id, "", devices.baseFsSize)
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if err != nil {
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_ = deleteDevice(devices.getPoolDevName(), id)
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_ = devicemapper.DeleteDevice(devices.getPoolDevName(), id)
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return err
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}
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@ -462,11 +463,12 @@ func setCloseOnExec(name string) {
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}
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}
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func (devices *DeviceSet) log(level int, file string, line int, dmError int, message string) {
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func (devices *DeviceSet) DMLog(level int, file string, line int, dmError int, message string) {
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if level >= 7 {
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return // Ignore _LOG_DEBUG
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}
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// FIXME(vbatts) push this back into ./pkg/devicemapper/
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log.Debugf("libdevmapper(%d): %s:%d (%d) %s", level, file, line, dmError, message)
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}
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@ -504,7 +506,7 @@ func (devices *DeviceSet) ResizePool(size int64) error {
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return fmt.Errorf("Can't shrink file")
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}
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dataloopback := FindLoopDeviceFor(datafile)
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dataloopback := devicemapper.FindLoopDeviceFor(datafile)
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if dataloopback == nil {
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return fmt.Errorf("Unable to find loopback mount for: %s", datafilename)
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}
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@ -516,7 +518,7 @@ func (devices *DeviceSet) ResizePool(size int64) error {
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}
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defer metadatafile.Close()
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metadataloopback := FindLoopDeviceFor(metadatafile)
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metadataloopback := devicemapper.FindLoopDeviceFor(metadatafile)
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if metadataloopback == nil {
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return fmt.Errorf("Unable to find loopback mount for: %s", metadatafilename)
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}
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@ -528,22 +530,22 @@ func (devices *DeviceSet) ResizePool(size int64) error {
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}
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// Reload size for loopback device
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if err := LoopbackSetCapacity(dataloopback); err != nil {
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if err := devicemapper.LoopbackSetCapacity(dataloopback); err != nil {
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return fmt.Errorf("Unable to update loopback capacity: %s", err)
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}
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// Suspend the pool
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if err := suspendDevice(devices.getPoolName()); err != nil {
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if err := devicemapper.SuspendDevice(devices.getPoolName()); err != nil {
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return fmt.Errorf("Unable to suspend pool: %s", err)
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}
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// Reload with the new block sizes
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if err := reloadPool(devices.getPoolName(), dataloopback, metadataloopback, devices.thinpBlockSize); err != nil {
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if err := devicemapper.ReloadPool(devices.getPoolName(), dataloopback, metadataloopback, devices.thinpBlockSize); err != nil {
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return fmt.Errorf("Unable to reload pool: %s", err)
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}
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// Resume the pool
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if err := resumeDevice(devices.getPoolName()); err != nil {
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if err := devicemapper.ResumeDevice(devices.getPoolName()); err != nil {
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return fmt.Errorf("Unable to resume pool: %s", err)
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}
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@ -574,9 +576,10 @@ func (devices *DeviceSet) saveDeviceSetMetaData() error {
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}
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func (devices *DeviceSet) initDevmapper(doInit bool) error {
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logInit(devices)
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// give ourselves to libdm as a log handler
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devicemapper.LogInit(devices)
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_, err := getDriverVersion()
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_, err := devicemapper.GetDriverVersion()
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if err != nil {
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// Can't even get driver version, assume not supported
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return graphdriver.ErrNotSupported
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@ -604,9 +607,9 @@ func (devices *DeviceSet) initDevmapper(doInit bool) error {
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// Check for the existence of the device <prefix>-pool
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log.Debugf("Checking for existence of the pool '%s'", devices.getPoolName())
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info, err := getInfo(devices.getPoolName())
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info, err := devicemapper.GetInfo(devices.getPoolName())
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if info == nil {
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log.Debugf("Error device getInfo: %s", err)
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log.Debugf("Error device devicemapper.GetInfo: %s", err)
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return err
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}
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@ -648,7 +651,7 @@ func (devices *DeviceSet) initDevmapper(doInit bool) error {
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return err
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}
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dataFile, err = attachLoopDevice(data)
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dataFile, err = devicemapper.AttachLoopDevice(data)
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if err != nil {
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return err
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}
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@ -679,7 +682,7 @@ func (devices *DeviceSet) initDevmapper(doInit bool) error {
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return err
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}
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metadataFile, err = attachLoopDevice(metadata)
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metadataFile, err = devicemapper.AttachLoopDevice(metadata)
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if err != nil {
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return err
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}
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@ -691,7 +694,7 @@ func (devices *DeviceSet) initDevmapper(doInit bool) error {
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}
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defer metadataFile.Close()
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if err := createPool(devices.getPoolName(), dataFile, metadataFile, devices.thinpBlockSize); err != nil {
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if err := devicemapper.CreatePool(devices.getPoolName(), dataFile, metadataFile, devices.thinpBlockSize); err != nil {
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return err
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}
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}
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@ -739,7 +742,7 @@ func (devices *DeviceSet) AddDevice(hash, baseHash string) error {
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deviceId := devices.NextDeviceId
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if err := createSnapDevice(devices.getPoolDevName(), &deviceId, baseInfo.Name(), baseInfo.DeviceId); err != nil {
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if err := devicemapper.CreateSnapDevice(devices.getPoolDevName(), &deviceId, baseInfo.Name(), baseInfo.DeviceId); err != nil {
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log.Debugf("Error creating snap device: %s", err)
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return err
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}
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@ -748,7 +751,7 @@ func (devices *DeviceSet) AddDevice(hash, baseHash string) error {
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devices.NextDeviceId = (deviceId + 1) & 0xffffff
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if _, err := devices.registerDevice(deviceId, hash, baseInfo.Size); err != nil {
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deleteDevice(devices.getPoolDevName(), deviceId)
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devicemapper.DeleteDevice(devices.getPoolDevName(), deviceId)
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log.Debugf("Error registering device: %s", err)
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return err
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}
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@ -761,13 +764,13 @@ func (devices *DeviceSet) deleteDevice(info *DevInfo) error {
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// on the thin pool when we remove a thinp device, so we do it
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// manually
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if err := devices.activateDeviceIfNeeded(info); err == nil {
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if err := BlockDeviceDiscard(info.DevName()); err != nil {
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if err := devicemapper.BlockDeviceDiscard(info.DevName()); err != nil {
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log.Debugf("Error discarding block on device: %s (ignoring)", err)
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}
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}
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}
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devinfo, _ := getInfo(info.Name())
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devinfo, _ := devicemapper.GetInfo(info.Name())
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if devinfo != nil && devinfo.Exists != 0 {
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if err := devices.removeDeviceAndWait(info.Name()); err != nil {
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log.Debugf("Error removing device: %s", err)
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@ -775,7 +778,7 @@ func (devices *DeviceSet) deleteDevice(info *DevInfo) error {
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}
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}
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if err := deleteDevice(devices.getPoolDevName(), info.DeviceId); err != nil {
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if err := devicemapper.DeleteDevice(devices.getPoolDevName(), info.DeviceId); err != nil {
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log.Debugf("Error deleting device: %s", err)
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return err
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}
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@ -816,16 +819,16 @@ func (devices *DeviceSet) deactivatePool() error {
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defer log.Debugf("[devmapper] deactivatePool END")
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devname := devices.getPoolDevName()
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devinfo, err := getInfo(devname)
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devinfo, err := devicemapper.GetInfo(devname)
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if err != nil {
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return err
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}
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if d, err := getDeps(devname); err == nil {
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if d, err := devicemapper.GetDeps(devname); err == nil {
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// Access to more Debug output
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log.Debugf("[devmapper] getDeps() %s: %#v", devname, d)
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log.Debugf("[devmapper] devicemapper.GetDeps() %s: %#v", devname, d)
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}
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if devinfo.Exists != 0 {
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return removeDevice(devname)
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return devicemapper.RemoveDevice(devname)
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}
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return nil
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@ -841,7 +844,7 @@ func (devices *DeviceSet) deactivateDevice(info *DevInfo) error {
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log.Errorf("Warning: error waiting for device %s to close: %s", info.Hash, err)
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}
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devinfo, err := getInfo(info.Name())
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devinfo, err := devicemapper.GetInfo(info.Name())
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if err != nil {
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return err
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}
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@ -860,11 +863,11 @@ func (devices *DeviceSet) removeDeviceAndWait(devname string) error {
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var err error
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for i := 0; i < 1000; i++ {
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err = removeDevice(devname)
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err = devicemapper.RemoveDevice(devname)
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if err == nil {
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break
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}
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if err != ErrBusy {
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if err != devicemapper.ErrBusy {
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return err
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}
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@ -892,7 +895,7 @@ func (devices *DeviceSet) waitRemove(devname string) error {
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defer log.Debugf("[deviceset %s] waitRemove(%s) END", devices.devicePrefix, devname)
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i := 0
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for ; i < 1000; i++ {
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devinfo, err := getInfo(devname)
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devinfo, err := devicemapper.GetInfo(devname)
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if err != nil {
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// If there is an error we assume the device doesn't exist.
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// The error might actually be something else, but we can't differentiate.
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@ -921,7 +924,7 @@ func (devices *DeviceSet) waitRemove(devname string) error {
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func (devices *DeviceSet) waitClose(info *DevInfo) error {
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i := 0
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for ; i < 1000; i++ {
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devinfo, err := getInfo(info.Name())
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devinfo, err := devicemapper.GetInfo(info.Name())
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if err != nil {
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return err
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}
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@ -942,7 +945,6 @@ func (devices *DeviceSet) waitClose(info *DevInfo) error {
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}
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func (devices *DeviceSet) Shutdown() error {
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log.Debugf("[deviceset %s] shutdown()", devices.devicePrefix)
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log.Debugf("[devmapper] Shutting down DeviceSet: %s", devices.root)
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defer log.Debugf("[deviceset %s] shutdown END", devices.devicePrefix)
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@ -1111,7 +1113,7 @@ func (devices *DeviceSet) HasActivatedDevice(hash string) bool {
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devices.Lock()
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defer devices.Unlock()
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devinfo, _ := getInfo(info.Name())
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devinfo, _ := devicemapper.GetInfo(info.Name())
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return devinfo != nil && devinfo.Exists != 0
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}
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@ -1133,7 +1135,7 @@ func (devices *DeviceSet) List() []string {
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func (devices *DeviceSet) deviceStatus(devName string) (sizeInSectors, mappedSectors, highestMappedSector uint64, err error) {
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var params string
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_, sizeInSectors, _, params, err = getStatus(devName)
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_, sizeInSectors, _, params, err = devicemapper.GetStatus(devName)
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if err != nil {
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return
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}
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@ -1178,7 +1180,7 @@ func (devices *DeviceSet) GetDeviceStatus(hash string) (*DevStatus, error) {
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func (devices *DeviceSet) poolStatus() (totalSizeInSectors, transactionId, dataUsed, dataTotal, metadataUsed, metadataTotal uint64, err error) {
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var params string
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if _, totalSizeInSectors, _, params, err = getStatus(devices.getPoolName()); err == nil {
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if _, totalSizeInSectors, _, params, err = devicemapper.GetStatus(devices.getPoolName()); err == nil {
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_, err = fmt.Sscanf(params, "%d %d/%d %d/%d", &transactionId, &metadataUsed, &metadataTotal, &dataUsed, &dataTotal)
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}
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return
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@ -1221,7 +1223,7 @@ func (devices *DeviceSet) Status() *Status {
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}
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func NewDeviceSet(root string, doInit bool, options []string) (*DeviceSet, error) {
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SetDevDir("/dev")
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devicemapper.SetDevDir("/dev")
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devices := &DeviceSet{
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root: root,
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@ -10,6 +10,7 @@ import (
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log "github.com/Sirupsen/logrus"
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"github.com/docker/docker/daemon/graphdriver"
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"github.com/docker/docker/pkg/devicemapper"
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"github.com/docker/docker/pkg/mount"
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"github.com/docker/docker/pkg/units"
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)
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@ -63,7 +64,7 @@ func (d *Driver) Status() [][2]string {
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{"Metadata Space Used", fmt.Sprintf("%s", units.HumanSize(int64(s.Metadata.Used)))},
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{"Metadata Space Total", fmt.Sprintf("%s", units.HumanSize(int64(s.Metadata.Total)))},
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}
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if vStr, err := GetLibraryVersion(); err == nil {
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if vStr, err := devicemapper.GetLibraryVersion(); err == nil {
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status = append(status, [2]string{"Library Version", vStr})
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}
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return status
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|
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@ -1,6 +1,6 @@
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// +build linux
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package devmapper
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package devicemapper
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import (
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"fmt"
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@ -84,7 +84,7 @@ func openNextAvailableLoopback(index int, sparseFile *os.File) (loopFile *os.Fil
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// attachLoopDevice attaches the given sparse file to the next
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// available loopback device. It returns an opened *os.File.
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func attachLoopDevice(sparseName string) (loop *os.File, err error) {
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func AttachLoopDevice(sparseName string) (loop *os.File, err error) {
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// Try to retrieve the next available loopback device via syscall.
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// If it fails, we discard error and start loopking for a
|
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@ -1,6 +1,6 @@
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// +build linux
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package devmapper
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package devicemapper
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import (
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"errors"
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@ -13,7 +13,7 @@ import (
|
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)
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type DevmapperLogger interface {
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log(level int, file string, line int, dmError int, message string)
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DMLog(level int, file string, line int, dmError int, message string)
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}
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const (
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|
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@ -272,7 +272,8 @@ func LogInitVerbose(level int) {
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|||
|
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var dmLogger DevmapperLogger = nil
|
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|
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func logInit(logger DevmapperLogger) {
|
||||
// initialize the logger for the device mapper library
|
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func LogInit(logger DevmapperLogger) {
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dmLogger = logger
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LogWithErrnoInit()
|
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}
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|
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@ -295,6 +296,7 @@ func GetLibraryVersion() (string, error) {
|
|||
|
||||
// Useful helper for cleanup
|
||||
func RemoveDevice(name string) error {
|
||||
// TODO(vbatts) just use the other removeDevice()
|
||||
task := TaskCreate(DeviceRemove)
|
||||
if task == nil {
|
||||
return ErrCreateRemoveTask
|
||||
|
|
@ -342,7 +344,7 @@ func BlockDeviceDiscard(path string) error {
|
|||
}
|
||||
|
||||
// This is the programmatic example of "dmsetup create"
|
||||
func createPool(poolName string, dataFile, metadataFile *os.File, poolBlockSize uint32) error {
|
||||
func CreatePool(poolName string, dataFile, metadataFile *os.File, poolBlockSize uint32) error {
|
||||
task, err := createTask(DeviceCreate, poolName)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -364,7 +366,7 @@ func createPool(poolName string, dataFile, metadataFile *os.File, poolBlockSize
|
|||
}
|
||||
|
||||
if err := task.Run(); err != nil {
|
||||
return fmt.Errorf("Error running DeviceCreate (createPool) %s", err)
|
||||
return fmt.Errorf("Error running DeviceCreate (CreatePool) %s", err)
|
||||
}
|
||||
|
||||
UdevWait(cookie)
|
||||
|
|
@ -372,7 +374,7 @@ func createPool(poolName string, dataFile, metadataFile *os.File, poolBlockSize
|
|||
return nil
|
||||
}
|
||||
|
||||
func reloadPool(poolName string, dataFile, metadataFile *os.File, poolBlockSize uint32) error {
|
||||
func ReloadPool(poolName string, dataFile, metadataFile *os.File, poolBlockSize uint32) error {
|
||||
task, err := createTask(DeviceReload, poolName)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -406,7 +408,7 @@ func createTask(t TaskType, name string) (*Task, error) {
|
|||
return task, nil
|
||||
}
|
||||
|
||||
func getDeps(name string) (*Deps, error) {
|
||||
func GetDeps(name string) (*Deps, error) {
|
||||
task, err := createTask(DeviceDeps, name)
|
||||
if task == nil {
|
||||
return nil, err
|
||||
|
|
@ -417,7 +419,7 @@ func getDeps(name string) (*Deps, error) {
|
|||
return task.GetDeps()
|
||||
}
|
||||
|
||||
func getInfo(name string) (*Info, error) {
|
||||
func GetInfo(name string) (*Info, error) {
|
||||
task, err := createTask(DeviceInfo, name)
|
||||
if task == nil {
|
||||
return nil, err
|
||||
|
|
@ -428,7 +430,7 @@ func getInfo(name string) (*Info, error) {
|
|||
return task.GetInfo()
|
||||
}
|
||||
|
||||
func getDriverVersion() (string, error) {
|
||||
func GetDriverVersion() (string, error) {
|
||||
task := TaskCreate(DeviceVersion)
|
||||
if task == nil {
|
||||
return "", fmt.Errorf("Can't create DeviceVersion task")
|
||||
|
|
@ -439,24 +441,24 @@ func getDriverVersion() (string, error) {
|
|||
return task.GetDriverVersion()
|
||||
}
|
||||
|
||||
func getStatus(name string) (uint64, uint64, string, string, error) {
|
||||
func GetStatus(name string) (uint64, uint64, string, string, error) {
|
||||
task, err := createTask(DeviceStatus, name)
|
||||
if task == nil {
|
||||
log.Debugf("getStatus: Error createTask: %s", err)
|
||||
log.Debugf("GetStatus: Error createTask: %s", err)
|
||||
return 0, 0, "", "", err
|
||||
}
|
||||
if err := task.Run(); err != nil {
|
||||
log.Debugf("getStatus: Error Run: %s", err)
|
||||
log.Debugf("GetStatus: Error Run: %s", err)
|
||||
return 0, 0, "", "", err
|
||||
}
|
||||
|
||||
devinfo, err := task.GetInfo()
|
||||
if err != nil {
|
||||
log.Debugf("getStatus: Error GetInfo: %s", err)
|
||||
log.Debugf("GetStatus: Error GetInfo: %s", err)
|
||||
return 0, 0, "", "", err
|
||||
}
|
||||
if devinfo.Exists == 0 {
|
||||
log.Debugf("getStatus: Non existing device %s", name)
|
||||
log.Debugf("GetStatus: Non existing device %s", name)
|
||||
return 0, 0, "", "", fmt.Errorf("Non existing device %s", name)
|
||||
}
|
||||
|
||||
|
|
@ -464,7 +466,7 @@ func getStatus(name string) (uint64, uint64, string, string, error) {
|
|||
return start, length, targetType, params, nil
|
||||
}
|
||||
|
||||
func setTransactionId(poolName string, oldId uint64, newId uint64) error {
|
||||
func SetTransactionId(poolName string, oldId uint64, newId uint64) error {
|
||||
task, err := createTask(DeviceTargetMsg, poolName)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -479,12 +481,12 @@ func setTransactionId(poolName string, oldId uint64, newId uint64) error {
|
|||
}
|
||||
|
||||
if err := task.Run(); err != nil {
|
||||
return fmt.Errorf("Error running setTransactionId %s", err)
|
||||
return fmt.Errorf("Error running SetTransactionId %s", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func suspendDevice(name string) error {
|
||||
func SuspendDevice(name string) error {
|
||||
task, err := createTask(DeviceSuspend, name)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -495,7 +497,7 @@ func suspendDevice(name string) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
func resumeDevice(name string) error {
|
||||
func ResumeDevice(name string) error {
|
||||
task, err := createTask(DeviceResume, name)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -515,8 +517,8 @@ func resumeDevice(name string) error {
|
|||
return nil
|
||||
}
|
||||
|
||||
func createDevice(poolName string, deviceId *int) error {
|
||||
log.Debugf("[devmapper] createDevice(poolName=%v, deviceId=%v)", poolName, *deviceId)
|
||||
func CreateDevice(poolName string, deviceId *int) error {
|
||||
log.Debugf("[devmapper] CreateDevice(poolName=%v, deviceId=%v)", poolName, *deviceId)
|
||||
|
||||
for {
|
||||
task, err := createTask(DeviceTargetMsg, poolName)
|
||||
|
|
@ -539,14 +541,14 @@ func createDevice(poolName string, deviceId *int) error {
|
|||
*deviceId++
|
||||
continue
|
||||
}
|
||||
return fmt.Errorf("Error running createDevice %s", err)
|
||||
return fmt.Errorf("Error running CreateDevice %s", err)
|
||||
}
|
||||
break
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func deleteDevice(poolName string, deviceId int) error {
|
||||
func DeleteDevice(poolName string, deviceId int) error {
|
||||
task, err := createTask(DeviceTargetMsg, poolName)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -561,14 +563,14 @@ func deleteDevice(poolName string, deviceId int) error {
|
|||
}
|
||||
|
||||
if err := task.Run(); err != nil {
|
||||
return fmt.Errorf("Error running deleteDevice %s", err)
|
||||
return fmt.Errorf("Error running DeleteDevice %s", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func removeDevice(name string) error {
|
||||
log.Debugf("[devmapper] removeDevice START")
|
||||
defer log.Debugf("[devmapper] removeDevice END")
|
||||
log.Debugf("[devmapper] RemoveDevice START")
|
||||
defer log.Debugf("[devmapper] RemoveDevice END")
|
||||
task, err := createTask(DeviceRemove, name)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -578,12 +580,12 @@ func removeDevice(name string) error {
|
|||
if dmSawBusy {
|
||||
return ErrBusy
|
||||
}
|
||||
return fmt.Errorf("Error running removeDevice %s", err)
|
||||
return fmt.Errorf("Error running RemoveDevice %s", err)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func activateDevice(poolName string, name string, deviceId int, size uint64) error {
|
||||
func ActivateDevice(poolName string, name string, deviceId int, size uint64) error {
|
||||
task, err := createTask(DeviceCreate, name)
|
||||
if task == nil {
|
||||
return err
|
||||
|
|
@ -603,7 +605,7 @@ func activateDevice(poolName string, name string, deviceId int, size uint64) err
|
|||
}
|
||||
|
||||
if err := task.Run(); err != nil {
|
||||
return fmt.Errorf("Error running DeviceCreate (activateDevice) %s", err)
|
||||
return fmt.Errorf("Error running DeviceCreate (ActivateDevice) %s", err)
|
||||
}
|
||||
|
||||
UdevWait(cookie)
|
||||
|
|
@ -611,12 +613,12 @@ func activateDevice(poolName string, name string, deviceId int, size uint64) err
|
|||
return nil
|
||||
}
|
||||
|
||||
func createSnapDevice(poolName string, deviceId *int, baseName string, baseDeviceId int) error {
|
||||
devinfo, _ := getInfo(baseName)
|
||||
func CreateSnapDevice(poolName string, deviceId *int, baseName string, baseDeviceId int) error {
|
||||
devinfo, _ := GetInfo(baseName)
|
||||
doSuspend := devinfo != nil && devinfo.Exists != 0
|
||||
|
||||
if doSuspend {
|
||||
if err := suspendDevice(baseName); err != nil {
|
||||
if err := SuspendDevice(baseName); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
|
@ -625,21 +627,21 @@ func createSnapDevice(poolName string, deviceId *int, baseName string, baseDevic
|
|||
task, err := createTask(DeviceTargetMsg, poolName)
|
||||
if task == nil {
|
||||
if doSuspend {
|
||||
resumeDevice(baseName)
|
||||
ResumeDevice(baseName)
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
if err := task.SetSector(0); err != nil {
|
||||
if doSuspend {
|
||||
resumeDevice(baseName)
|
||||
ResumeDevice(baseName)
|
||||
}
|
||||
return fmt.Errorf("Can't set sector %s", err)
|
||||
}
|
||||
|
||||
if err := task.SetMessage(fmt.Sprintf("create_snap %d %d", *deviceId, baseDeviceId)); err != nil {
|
||||
if doSuspend {
|
||||
resumeDevice(baseName)
|
||||
ResumeDevice(baseName)
|
||||
}
|
||||
return fmt.Errorf("Can't set message %s", err)
|
||||
}
|
||||
|
|
@ -653,7 +655,7 @@ func createSnapDevice(poolName string, deviceId *int, baseName string, baseDevic
|
|||
}
|
||||
|
||||
if doSuspend {
|
||||
resumeDevice(baseName)
|
||||
ResumeDevice(baseName)
|
||||
}
|
||||
return fmt.Errorf("Error running DeviceCreate (createSnapDevice) %s", err)
|
||||
}
|
||||
|
|
@ -662,7 +664,7 @@ func createSnapDevice(poolName string, deviceId *int, baseName string, baseDevic
|
|||
}
|
||||
|
||||
if doSuspend {
|
||||
if err := resumeDevice(baseName); err != nil {
|
||||
if err := ResumeDevice(baseName); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
|
@ -1,6 +1,6 @@
|
|||
// +build linux
|
||||
|
||||
package devmapper
|
||||
package devicemapper
|
||||
|
||||
import "C"
|
||||
|
||||
|
|
@ -25,6 +25,6 @@ func DevmapperLogCallback(level C.int, file *C.char, line C.int, dm_errno_or_cla
|
|||
}
|
||||
|
||||
if dmLogger != nil {
|
||||
dmLogger.log(int(level), C.GoString(file), int(line), int(dm_errno_or_class), msg)
|
||||
dmLogger.DMLog(int(level), C.GoString(file), int(line), int(dm_errno_or_class), msg)
|
||||
}
|
||||
}
|
||||
|
|
@ -1,6 +1,6 @@
|
|||
// +build linux
|
||||
|
||||
package devmapper
|
||||
package devicemapper
|
||||
|
||||
/*
|
||||
#cgo LDFLAGS: -L. -ldevmapper
|
||||
|
|
@ -1,6 +1,6 @@
|
|||
// +build linux
|
||||
|
||||
package devmapper
|
||||
package devicemapper
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
Загрузка…
Ссылка в новой задаче