4809 NANOSEC should be 'long long' to avoid integer overflow bugs
4810 spa_async_tasks_pending suffers from an integer overflow bug
4811 in.mpathd: tv2ns suffers from an integer overflow bug
Reviewed by: Marcel Telka <marcel.telka@nexenta.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Robert Mustacchi <rm@joyent.com>
4819 fix mpt_sas command timeout handling
Reviewed by: Hans Rosenfeld <hans.rosenfeld@nexenta.com>
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Keith Wesolowski <keith.wesolowski@joyent.com>
Approved by: Dan McDonald <danmcd@omniti.com>
4823 don't open-code NSEC2MSEC and MSEC2NSEC
Reviewed by: Richard Elling <richard.elling@gmail.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
	[illumos-gate merge]

commit 19449258028e6813f0b7a606b554b2fa37a390ec
    4823 don't open-code NSEC2MSEC and MSEC2NSEC
commit cb3e7fb42f8104f779abb6856ccf6e5b8e6419d8
    4819 fix mpt_sas command timeout handling
commit b59e2127f21675e88c58a4dd924bc55eeb83c7a6
    4809 NANOSEC should be 'long long' to avoid integer overflow bugs
    4810 spa_async_tasks_pending suffers from an integer overflow bug
    4811 in.mpathd: tv2ns suffers from an integer overflow bug