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cleanup: move mount functions to new pkg

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moved fuse and kernel mount functions
to a new package.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna 2021-09-16 20:16:07 +05:30 committed by mergify[bot]
parent b1ef842640
commit 34a21cdbe3
8 changed files with 385 additions and 327 deletions
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2
internal/cephfs/core/volume.go
View File

@ -40,8 +40,6 @@ import (
var clusterAdditionalInfo = make(map[string]*localClusterState)
const (
cephEntityClientPrefix = "client."
// modeAllRWX can be used for setting permissions to Read-Write-eXecute
// for User, Group and Other.
modeAllRWX = 0o777

310
internal/cephfs/core/volumemounter.go
View File

@ -1,310 +0,0 @@
/*
Copyright 2018 The Ceph-CSI Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package core
import (
"context"
"errors"
"fmt"
"os"
"os/exec"
"regexp"
"strconv"
"strings"
"sync"
"github.com/ceph/ceph-csi/internal/util"
"github.com/ceph/ceph-csi/internal/util/log"
)
const (
volumeMounterFuse = "fuse"
volumeMounterKernel = "kernel"
netDev = "_netdev"
)
var (
availableMounters []string
// maps a mountpoint to PID of its FUSE daemon.
fusePidMap = make(map[string]int)
fusePidMapMtx sync.Mutex
fusePidRx = regexp.MustCompile(`(?m)^ceph-fuse\[(.+)\]: starting fuse$`)
// nolint:gomnd // numbers specify Kernel versions.
quotaSupport = []util.KernelVersion{
{
Version: 4,
PatchLevel: 17,
SubLevel: 0,
ExtraVersion: 0, Distribution: "",
Backport: false,
}, // standard 4.17+ versions
{
Version: 3,
PatchLevel: 10,
SubLevel: 0,
ExtraVersion: 1062,
Distribution: ".el7",
Backport: true,
}, // RHEL-7.7
}
)
func execCommandErr(ctx context.Context, program string, args ...string) error {
_, _, err := util.ExecCommand(ctx, program, args...)
return err
}
// Load available ceph mounters installed on system into availableMounters
// Called from driver.go's Run().
func LoadAvailableMounters(conf *util.Config) error {
// #nosec
fuseMounterProbe := exec.Command("ceph-fuse", "--version")
// #nosec
kernelMounterProbe := exec.Command("mount.ceph")
err := kernelMounterProbe.Run()
if err != nil {
log.ErrorLogMsg("failed to run mount.ceph %v", err)
} else {
// fetch the current running kernel info
release, kvErr := util.GetKernelVersion()
if kvErr != nil {
return kvErr
}
if conf.ForceKernelCephFS || util.CheckKernelSupport(release, quotaSupport) {
log.DefaultLog("loaded mounter: %s", volumeMounterKernel)
availableMounters = append(availableMounters, volumeMounterKernel)
} else {
log.DefaultLog("kernel version < 4.17 might not support quota feature, hence not loading kernel client")
}
}
err = fuseMounterProbe.Run()
if err != nil {
log.ErrorLogMsg("failed to run ceph-fuse %v", err)
} else {
log.DefaultLog("loaded mounter: %s", volumeMounterFuse)
availableMounters = append(availableMounters, volumeMounterFuse)
}
if len(availableMounters) == 0 {
return errors.New("no ceph mounters found on system")
}
return nil
}
type VolumeMounter interface {
Mount(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *VolumeOptions) error
Name() string
}
func NewMounter(volOptions *VolumeOptions) (VolumeMounter, error) {
// Get the mounter from the configuration
wantMounter := volOptions.Mounter
// Verify that it's available
var chosenMounter string
for _, availMounter := range availableMounters {
if availMounter == wantMounter {
chosenMounter = wantMounter
break
}
}
if chosenMounter == "" {
// Otherwise pick whatever is left
chosenMounter = availableMounters[0]
log.DebugLogMsg("requested mounter: %s, chosen mounter: %s", wantMounter, chosenMounter)
}
// Create the mounter
switch chosenMounter {
case volumeMounterFuse:
return &FuseMounter{}, nil
case volumeMounterKernel:
return &KernelMounter{}, nil
}
return nil, fmt.Errorf("unknown mounter '%s'", chosenMounter)
}
type FuseMounter struct{}
func mountFuse(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *VolumeOptions) error {
args := []string{
mountPoint,
"-m", volOptions.Monitors,
"-c", util.CephConfigPath,
"-n", cephEntityClientPrefix + cr.ID, "--keyfile=" + cr.KeyFile,
"-r", volOptions.RootPath,
}
fmo := "nonempty"
if volOptions.FuseMountOptions != "" {
fmo += "," + strings.TrimSpace(volOptions.FuseMountOptions)
}
args = append(args, "-o", fmo)
if volOptions.FsName != "" {
args = append(args, "--client_mds_namespace="+volOptions.FsName)
}
_, stderr, err := util.ExecCommand(ctx, "ceph-fuse", args[:]...)
if err != nil {
return fmt.Errorf("%w stderr: %s", err, stderr)
}
// Parse the output:
// We need "starting fuse" meaning the mount is ok
// and PID of the ceph-fuse daemon for unmount
match := fusePidRx.FindSubmatch([]byte(stderr))
// validMatchLength is set to 2 as match is expected
// to have 2 items, starting fuse and PID of the fuse daemon
const validMatchLength = 2
if len(match) != validMatchLength {
return fmt.Errorf("ceph-fuse failed: %s", stderr)
}
pid, err := strconv.Atoi(string(match[1]))
if err != nil {
return fmt.Errorf("failed to parse FUSE daemon PID: %w", err)
}
fusePidMapMtx.Lock()
fusePidMap[mountPoint] = pid
fusePidMapMtx.Unlock()
return nil
}
func (m *FuseMounter) Mount(
ctx context.Context,
mountPoint string,
cr *util.Credentials,
volOptions *VolumeOptions) error {
if err := util.CreateMountPoint(mountPoint); err != nil {
return err
}
return mountFuse(ctx, mountPoint, cr, volOptions)
}
func (m *FuseMounter) Name() string { return "Ceph FUSE driver" }
type KernelMounter struct{}
func mountKernel(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *VolumeOptions) error {
if err := execCommandErr(ctx, "modprobe", "ceph"); err != nil {
return err
}
args := []string{
"-t", "ceph",
fmt.Sprintf("%s:%s", volOptions.Monitors, volOptions.RootPath),
mountPoint,
}
optionsStr := fmt.Sprintf("name=%s,secretfile=%s", cr.ID, cr.KeyFile)
mdsNamespace := ""
if volOptions.FsName != "" {
mdsNamespace = fmt.Sprintf("mds_namespace=%s", volOptions.FsName)
}
optionsStr = util.MountOptionsAdd(optionsStr, mdsNamespace, volOptions.KernelMountOptions, netDev)
args = append(args, "-o", optionsStr)
_, stderr, err := util.ExecCommand(ctx, "mount", args[:]...)
if err != nil {
return fmt.Errorf("%w stderr: %s", err, stderr)
}
return err
}
func (m *KernelMounter) Mount(
ctx context.Context,
mountPoint string,
cr *util.Credentials,
volOptions *VolumeOptions) error {
if err := util.CreateMountPoint(mountPoint); err != nil {
return err
}
return mountKernel(ctx, mountPoint, cr, volOptions)
}
func (m *KernelMounter) Name() string { return "Ceph kernel client" }
func BindMount(ctx context.Context, from, to string, readOnly bool, mntOptions []string) error {
mntOptionSli := strings.Join(mntOptions, ",")
if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, from, to); err != nil {
return fmt.Errorf("failed to bind-mount %s to %s: %w", from, to, err)
}
if readOnly {
mntOptionSli = util.MountOptionsAdd(mntOptionSli, "remount")
if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, to); err != nil {
return fmt.Errorf("failed read-only remount of %s: %w", to, err)
}
}
return nil
}
func UnmountVolume(ctx context.Context, mountPoint string) error {
if _, stderr, err := util.ExecCommand(ctx, "umount", mountPoint); err != nil {
err = fmt.Errorf("%w stderr: %s", err, stderr)
if strings.Contains(err.Error(), fmt.Sprintf("umount: %s: not mounted", mountPoint)) ||
strings.Contains(err.Error(), "No such file or directory") {
return nil
}
return err
}
fusePidMapMtx.Lock()
pid, ok := fusePidMap[mountPoint]
if ok {
delete(fusePidMap, mountPoint)
}
fusePidMapMtx.Unlock()
if ok {
p, err := os.FindProcess(pid)
if err != nil {
log.WarningLog(ctx, "failed to find process %d: %v", pid, err)
} else {
if _, err = p.Wait(); err != nil {
log.WarningLog(ctx, "%d is not a child process: %v", pid, err)
}
}
}
return nil
}

4
internal/cephfs/core/volumeoptions.go
View File

@ -123,8 +123,8 @@ func extractOption(dest *string, optionLabel string, options map[string]string)
func validateMounter(m string) error {
switch m {
case volumeMounterFuse:
case volumeMounterKernel:
case "fuse":
case "kernel":
default:
return fmt.Errorf("unknown mounter '%s'. Valid options are 'fuse' and 'kernel'", m)
}

11
internal/cephfs/driver.go
View File

@ -18,6 +18,7 @@ package cephfs
import (
"github.com/ceph/ceph-csi/internal/cephfs/core"
"github.com/ceph/ceph-csi/internal/cephfs/mounter"
fsutil "github.com/ceph/ceph-csi/internal/cephfs/util"
csicommon "github.com/ceph/ceph-csi/internal/csi-common"
"github.com/ceph/ceph-csi/internal/journal"
@ -36,11 +37,9 @@ type Driver struct {
cs *ControllerServer
}
var (
// CSIInstanceID is the instance ID that is unique to an instance of CSI, used when sharing
// ceph clusters across CSI instances, to differentiate omap names per CSI instance.
CSIInstanceID = "default"
)
// CSIInstanceID is the instance ID that is unique to an instance of CSI, used when sharing
// ceph clusters across CSI instances, to differentiate omap names per CSI instance.
var CSIInstanceID = "default"
// NewDriver returns new ceph driver.
func NewDriver() *Driver {
@ -79,7 +78,7 @@ func (fs *Driver) Run(conf *util.Config) {
var topology map[string]string
// Configuration
if err = core.LoadAvailableMounters(conf); err != nil {
if err = mounter.LoadAvailableMounters(conf); err != nil {
log.FatalLogMsg("cephfs: failed to load ceph mounters: %v", err)
}

142
internal/cephfs/mounter/fuse.go Normal file
View File

@ -0,0 +1,142 @@
/*
Copyright 2021 The Ceph-CSI Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package mounter
import (
"context"
"fmt"
"os"
"regexp"
"strconv"
"strings"
"sync"
"github.com/ceph/ceph-csi/internal/cephfs/core"
"github.com/ceph/ceph-csi/internal/util"
"github.com/ceph/ceph-csi/internal/util/log"
)
const (
volumeMounterFuse = "fuse"
cephEntityClientPrefix = "client."
)
var (
// maps a mountpoint to PID of its FUSE daemon.
fusePidMap = make(map[string]int)
fusePidMapMtx sync.Mutex
fusePidRx = regexp.MustCompile(`(?m)^ceph-fuse\[(.+)\]: starting fuse$`)
)
type FuseMounter struct{}
func mountFuse(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *core.VolumeOptions) error {
args := []string{
mountPoint,
"-m", volOptions.Monitors,
"-c", util.CephConfigPath,
"-n", cephEntityClientPrefix + cr.ID, "--keyfile=" + cr.KeyFile,
"-r", volOptions.RootPath,
}
fmo := "nonempty"
if volOptions.FuseMountOptions != "" {
fmo += "," + strings.TrimSpace(volOptions.FuseMountOptions)
}
args = append(args, "-o", fmo)
if volOptions.FsName != "" {
args = append(args, "--client_mds_namespace="+volOptions.FsName)
}
_, stderr, err := util.ExecCommand(ctx, "ceph-fuse", args[:]...)
if err != nil {
return fmt.Errorf("%w stderr: %s", err, stderr)
}
// Parse the output:
// We need "starting fuse" meaning the mount is ok
// and PID of the ceph-fuse daemon for unmount
match := fusePidRx.FindSubmatch([]byte(stderr))
// validMatchLength is set to 2 as match is expected
// to have 2 items, starting fuse and PID of the fuse daemon
const validMatchLength = 2
if len(match) != validMatchLength {
return fmt.Errorf("ceph-fuse failed: %s", stderr)
}
pid, err := strconv.Atoi(string(match[1]))
if err != nil {
return fmt.Errorf("failed to parse FUSE daemon PID: %w", err)
}
fusePidMapMtx.Lock()
fusePidMap[mountPoint] = pid
fusePidMapMtx.Unlock()
return nil
}
func (m *FuseMounter) Mount(
ctx context.Context,
mountPoint string,
cr *util.Credentials,
volOptions *core.VolumeOptions) error {
if err := util.CreateMountPoint(mountPoint); err != nil {
return err
}
return mountFuse(ctx, mountPoint, cr, volOptions)
}
func (m *FuseMounter) Name() string { return "Ceph FUSE driver" }
func UnmountVolume(ctx context.Context, mountPoint string) error {
if _, stderr, err := util.ExecCommand(ctx, "umount", mountPoint); err != nil {
err = fmt.Errorf("%w stderr: %s", err, stderr)
if strings.Contains(err.Error(), fmt.Sprintf("umount: %s: not mounted", mountPoint)) ||
strings.Contains(err.Error(), "No such file or directory") {
return nil
}
return err
}
fusePidMapMtx.Lock()
pid, ok := fusePidMap[mountPoint]
if ok {
delete(fusePidMap, mountPoint)
}
fusePidMapMtx.Unlock()
if ok {
p, err := os.FindProcess(pid)
if err != nil {
log.WarningLog(ctx, "failed to find process %d: %v", pid, err)
} else {
if _, err = p.Wait(); err != nil {
log.WarningLog(ctx, "%d is not a child process: %v", pid, err)
}
}
}
return nil
}

74
internal/cephfs/mounter/kernel.go Normal file
View File

@ -0,0 +1,74 @@
/*
Copyright 2021 The Ceph-CSI Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package mounter
import (
"context"
"fmt"
"github.com/ceph/ceph-csi/internal/cephfs/core"
"github.com/ceph/ceph-csi/internal/util"
)
const (
volumeMounterKernel = "kernel"
netDev = "_netdev"
)
type KernelMounter struct{}
func mountKernel(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *core.VolumeOptions) error {
if err := execCommandErr(ctx, "modprobe", "ceph"); err != nil {
return err
}
args := []string{
"-t", "ceph",
fmt.Sprintf("%s:%s", volOptions.Monitors, volOptions.RootPath),
mountPoint,
}
optionsStr := fmt.Sprintf("name=%s,secretfile=%s", cr.ID, cr.KeyFile)
mdsNamespace := ""
if volOptions.FsName != "" {
mdsNamespace = fmt.Sprintf("mds_namespace=%s", volOptions.FsName)
}
optionsStr = util.MountOptionsAdd(optionsStr, mdsNamespace, volOptions.KernelMountOptions, netDev)
args = append(args, "-o", optionsStr)
_, stderr, err := util.ExecCommand(ctx, "mount", args[:]...)
if err != nil {
return fmt.Errorf("%w stderr: %s", err, stderr)
}
return err
}
func (m *KernelMounter) Mount(
ctx context.Context,
mountPoint string,
cr *util.Credentials,
volOptions *core.VolumeOptions) error {
if err := util.CreateMountPoint(mountPoint); err != nil {
return err
}
return mountKernel(ctx, mountPoint, cr, volOptions)
}
func (m *KernelMounter) Name() string { return "Ceph kernel client" }

154
internal/cephfs/mounter/volumemounter.go Normal file
View File

@ -0,0 +1,154 @@
/*
Copyright 2018 The Ceph-CSI Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package mounter
import (
"context"
"errors"
"fmt"
"os/exec"
"strings"
"github.com/ceph/ceph-csi/internal/cephfs/core"
"github.com/ceph/ceph-csi/internal/util"
"github.com/ceph/ceph-csi/internal/util/log"
)
var (
availableMounters []string
// nolint:gomnd // numbers specify Kernel versions.
quotaSupport = []util.KernelVersion{
{
Version: 4,
PatchLevel: 17,
SubLevel: 0,
ExtraVersion: 0, Distribution: "",
Backport: false,
}, // standard 4.17+ versions
{
Version: 3,
PatchLevel: 10,
SubLevel: 0,
ExtraVersion: 1062,
Distribution: ".el7",
Backport: true,
}, // RHEL-7.7
}
)
func execCommandErr(ctx context.Context, program string, args ...string) error {
_, _, err := util.ExecCommand(ctx, program, args...)
return err
}
// Load available ceph mounters installed on system into availableMounters
// Called from driver.go's Run().
func LoadAvailableMounters(conf *util.Config) error {
// #nosec
fuseMounterProbe := exec.Command("ceph-fuse", "--version")
// #nosec
kernelMounterProbe := exec.Command("mount.ceph")
err := kernelMounterProbe.Run()
if err != nil {
log.ErrorLogMsg("failed to run mount.ceph %v", err)
} else {
// fetch the current running kernel info
release, kvErr := util.GetKernelVersion()
if kvErr != nil {
return kvErr
}
if conf.ForceKernelCephFS || util.CheckKernelSupport(release, quotaSupport) {
log.DefaultLog("loaded mounter: %s", volumeMounterKernel)
availableMounters = append(availableMounters, volumeMounterKernel)
} else {
log.DefaultLog("kernel version < 4.17 might not support quota feature, hence not loading kernel client")
}
}
err = fuseMounterProbe.Run()
if err != nil {
log.ErrorLogMsg("failed to run ceph-fuse %v", err)
} else {
log.DefaultLog("loaded mounter: %s", volumeMounterFuse)
availableMounters = append(availableMounters, volumeMounterFuse)
}
if len(availableMounters) == 0 {
return errors.New("no ceph mounters found on system")
}
return nil
}
type VolumeMounter interface {
Mount(ctx context.Context, mountPoint string, cr *util.Credentials, volOptions *core.VolumeOptions) error
Name() string
}
func New(volOptions *core.VolumeOptions) (VolumeMounter, error) {
// Get the mounter from the configuration
wantMounter := volOptions.Mounter
// Verify that it's available
var chosenMounter string
for _, availMounter := range availableMounters {
if availMounter == wantMounter {
chosenMounter = wantMounter
break
}
}
if chosenMounter == "" {
// Otherwise pick whatever is left
chosenMounter = availableMounters[0]
log.DebugLogMsg("requested mounter: %s, chosen mounter: %s", wantMounter, chosenMounter)
}
// Create the mounter
switch chosenMounter {
case volumeMounterFuse:
return &FuseMounter{}, nil
case volumeMounterKernel:
return &KernelMounter{}, nil
}
return nil, fmt.Errorf("unknown mounter '%s'", chosenMounter)
}
func BindMount(ctx context.Context, from, to string, readOnly bool, mntOptions []string) error {
mntOptionSli := strings.Join(mntOptions, ",")
if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, from, to); err != nil {
return fmt.Errorf("failed to bind-mount %s to %s: %w", from, to, err)
}
if readOnly {
mntOptionSli = util.MountOptionsAdd(mntOptionSli, "remount")
if err := execCommandErr(ctx, "mount", "-o", mntOptionSli, to); err != nil {
return fmt.Errorf("failed read-only remount of %s: %w", to, err)
}
}
return nil
}

15
internal/cephfs/nodeserver.go
View File

@ -25,6 +25,7 @@ import (
"github.com/ceph/ceph-csi/internal/cephfs/core"
cerrors "github.com/ceph/ceph-csi/internal/cephfs/errors"
"github.com/ceph/ceph-csi/internal/cephfs/mounter"
fsutil "github.com/ceph/ceph-csi/internal/cephfs/util"
csicommon "github.com/ceph/ceph-csi/internal/csi-common"
"github.com/ceph/ceph-csi/internal/util"
@ -153,7 +154,7 @@ func (*NodeServer) mount(ctx context.Context, volOptions *core.VolumeOptions, re
}
defer cr.DeleteCredentials()
m, err := core.NewMounter(volOptions)
m, err := mounter.New(volOptions)
if err != nil {
log.ErrorLog(ctx, "failed to create mounter for volume %s: %v", volID, err)
@ -169,12 +170,12 @@ func (*NodeServer) mount(ctx context.Context, volOptions *core.VolumeOptions, re
if req.VolumeCapability.AccessMode.Mode == csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY ||
req.VolumeCapability.AccessMode.Mode == csi.VolumeCapability_AccessMode_SINGLE_NODE_READER_ONLY {
switch m.(type) {
case *core.FuseMounter:
case *mounter.FuseMounter:
if !csicommon.MountOptionContains(strings.Split(volOptions.FuseMountOptions, ","), readOnly) {
volOptions.FuseMountOptions = util.MountOptionsAdd(volOptions.FuseMountOptions, readOnly)
fuseMountOptions = append(fuseMountOptions, readOnly)
}
case *core.KernelMounter:
case *mounter.KernelMounter:
if !csicommon.MountOptionContains(strings.Split(volOptions.KernelMountOptions, ","), readOnly) {
volOptions.KernelMountOptions = util.MountOptionsAdd(volOptions.KernelMountOptions, readOnly)
kernelMountOptions = append(kernelMountOptions, readOnly)
@ -201,7 +202,7 @@ func (*NodeServer) mount(ctx context.Context, volOptions *core.VolumeOptions, re
stagingTargetPath,
volID,
err)
uErr := core.UnmountVolume(ctx, stagingTargetPath)
uErr := mounter.UnmountVolume(ctx, stagingTargetPath)
if uErr != nil {
log.ErrorLog(
ctx,
@ -263,7 +264,7 @@ func (ns *NodeServer) NodePublishVolume(
// It's not, mount now
if err = core.BindMount(
if err = mounter.BindMount(
ctx,
req.GetStagingTargetPath(),
req.GetTargetPath(),
@ -310,7 +311,7 @@ func (ns *NodeServer) NodeUnpublishVolume(
}
// Unmount the bind-mount
if err = core.UnmountVolume(ctx, targetPath); err != nil {
if err = mounter.UnmountVolume(ctx, targetPath); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
@ -358,7 +359,7 @@ func (ns *NodeServer) NodeUnstageVolume(
return &csi.NodeUnstageVolumeResponse{}, nil
}
// Unmount the volume
if err = core.UnmountVolume(ctx, stagingTargetPath); err != nil {
if err = mounter.UnmountVolume(ctx, stagingTargetPath); err != nil {
return nil, status.Error(codes.Internal, err.Error())
}