[PATCH 3/4] eppic/dir_names: Introduce changes for kernel 3.14

Linux kernel commit 38129a13e6e7 ("switch mnt_hash to hlist"),
moves mnt_hash from list_head to hlist_node. Introduce these
list type changes to iterate over the mounted filesystem and
walk dentries.

These changes are not compatible with previous kernel versions,
so add new dir_names script file for kernel version >= 3.14
to kernel version <= 4.8.

Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Atsushi Kumagai <ats-kumagai@wm.jp.nec.com>