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Merge pull request #68741 from jsafrane/fix-var-symlink

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Fixed subpath cleanup when /var/lib/kubelet is a symlink.
This commit is contained in:
k8s-ci-robot
2018-09-26 14:42:44 -07:00
committed by GitHub
parent ea09a3b40c 9e24ccbda0
commit 29cff0d518
1 changed files with 7 additions and 2 deletions
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9
pkg/util/mount/mount.go
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@@ -251,9 +251,14 @@ func GetDeviceNameFromMount(mounter Interface, mountPath string) (string, int, e
// It is more extensive than IsLikelyNotMountPoint
// and it detects bind mounts in linux
func IsNotMountPoint(mounter Interface, file string) (bool, error) {
// Resolve any symlinks in file, kernel would do the same and use the resolved path in /proc/mounts
resolvedFile, err := mounter.EvalHostSymlinks(file)
if err != nil {
return true, err
}
// IsLikelyNotMountPoint provides a quick check
// to determine whether file IS A mountpoint
notMnt, notMntErr := mounter.IsLikelyNotMountPoint(file)
notMnt, notMntErr := mounter.IsLikelyNotMountPoint(resolvedFile)
if notMntErr != nil && os.IsPermission(notMntErr) {
// We were not allowed to do the simple stat() check, e.g. on NFS with
// root_squash. Fall back to /proc/mounts check below.
@@ -274,7 +279,7 @@ func IsNotMountPoint(mounter Interface, file string) (bool, error) {
return notMnt, mountPointsErr
}
for _, mp := range mountPoints {
if mounter.IsMountPointMatch(mp, file) {
if mounter.IsMountPointMatch(mp, resolvedFile) {
notMnt = false
break
}