K 10
svn:author
V 8
rmacklem
K 8
svn:date
V 27
2018-06-06T22:02:20.785021Z
K 7
svn:log
V 764
MFC: r333580
Fix a slow leak of session structures in the NFSv4.1 server.

For a fairly rare case of a client doing an ExchangeID after a hard reboot,
the old confirmed clientid still exists, but some clients use a new
co_verifier. For this case, the server was not freeing up the sessions on
the old confirmed clientid.
This patch fixes this case. It also adds two LIST_INIT() macros, which are
actually no-ops, since the structure is malloc()d with M_ZERO so the pointer
is already set to NULL.
It should have minimal impact, since the only way I could exercise this
code path was by doing a hard power cycle (pulling the plus) on a machine
running Linux with a NFSv4.1 mount on the server.
Originally spotted during testing of the ESXi 6.5 client.

PR:		228497

END