# Functions
HostProcFS creates a proc.FileSystem representing the underlying host's procfs.
Mounts returns the list of currently mounted filesystems.
MountTempFS mounts a filesystem.
PerfEventDir returns the mountpoint of the perf_event cgroup pseudo-filesystem or an empty string if it wasn't found.
ProcFS creates a proc.FileSystem representing the default procfs mountpoint /proc.
TracingDir returns the directory on either the debugfs or tracefs used to control the Linux kernel trace event subsystem.
UnmountTempFS unmounts a filesystem.