Please apply 853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 ("ocfs2: subsystem.su_mutex is required while accessing the item->ci_parent") to v4.9.y

[Salvatore Bonaccorso <carnil@xxxxxxxxxx>]

Hi Greg,

Please apply commit 853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 ("ocfs2:
subsystem.su_mutex is required while accessing the item->ci_parent")
to v4.9.y to address CVE-2017-18216.

It has been already applied for instance to 3.16.57
(d9b4d618a22bf30a1c82dffc5c7cb3b1abda48dc) and 3.2.102
(dfd9f20a2db71ca01033040ecf69d5c0e67db629).

Regards,
Salvatore