kubernetes/staging/src/k8s.io/mount-utils/mount_helper_unix.go

const expectedAtLeastNumFieldsPerMountInfo …

const maxListTries …

// IsCorruptedMnt return true if err is about corrupted mount point
func IsCorruptedMnt(err error) bool { … }

type MountInfo …

// ParseMountInfo parses /proc/xxx/mountinfo.
func ParseMountInfo(filename string) ([]MountInfo, error) { … }

// splitMountOptions parses comma-separated list of mount options into an array.
// It respects double quotes - commas in them are not considered as the option separator.
func splitMountOptions(s string) []string { … }

// isMountPointMatch returns true if the path in mp is the same as dir.
// Handles case where mountpoint dir has been renamed due to stale NFS mount.
func isMountPointMatch(mp MountPoint, dir string) bool { … }

// PathExists returns true if the specified path exists.
// TODO: clean this up to use pkg/util/file/FileExists
func PathExists(path string) (bool, error) { … }

var hasMountinfoBug …

var checkMountinfoBugOnce …

// kernelHasMountinfoBug checks if the kernel bug that can lead to incomplete
// mountinfo being read is fixed. It does so by checking the kernel version.
//
// The bug was fixed by the kernel commit 9f6c61f96f2d97 (since Linux 5.8).
// Alas, there is no better way to check if the bug is fixed other than to
// rely on the kernel version returned by uname.
func kernelHasMountinfoBug() bool { … }

func readMountInfo(path string) ([]byte, error) { … }