3805 arc shouldn't cache freed blocks
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Richard Elling <richard.elling@dey-sys.com>
Reviewed by: Will Andrews <will@firepipe.net>
Approved by: Dan McDonald <danmcd@nexenta.com>
3505 Creating LU unconditionally enables write cache on backing store device
Reviewed by: Vitaliy Gusev <vitaliy.gusev@nexenta.com>
Reviewed by: Albert Lee <trisk@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Ricard Lowe <richlowe@richlowe.net>
3506 Use "hypervisor" CPUID bit to detect hypervisor environment
Reviewed by: Hans Rosenfeld <hans.rosenfeld@nexenta.com>
Reviewed by: Albert Lee <trisk@nexenta.com>
Approved by: Robert Mustacchi <rm@joyent.com>
	[illumos-gate merge]

commit 79ec9da85c2648e2e165ce68612ad0cb6e185618
    3506 Use "hypervisor" CPUID bit to detect hypervisor environment
commit 7e0955bbb1c326d78038afe0d108c8ae4934a78a
    3505 Creating LU unconditionally enables write cache on backing store device
commit 6e6d5868f52089b9026785bd90257a3d3f6e5ee2
    3805 arc shouldn't cache freed blocks