5182 use after free in blkdev
Reviewed by: Marcel Telka <marcel@telka.sk>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Dan McDonald <danmcd@omniti.com>
5181 nscd is extremely slow when a local file is missing
Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Josef Sipek <josef.sipek@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Robert Mustacchi <rm@joyent.com>
5174 add sdt probe for blocked read in dbuf_read()
Reviewed by: Basil Crow <basil.crow@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Steven Hartland <killing@multiplay.co.uk>
Reviewed by: Richard Elling <richard.elling@gmail.com>
Reviewed by: Boris Protopopov <bprotopopov@hotmail.com>
Reviewed by: Steven Hartland <killing@multiplay.co.uk>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Robert Mustacchi <rm@joyent.com>
5150 zfs clone of a defer_destroy snapshot causes strangeness
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Max Grossman <max.grossman@delphix.com>
Reviewed by: Saso Kiselkov <skiselkov.ml@gmail.com>
Reviewed by: Richard Elling <richard.elling@gmail.com>
Approved by: Robert Mustacchi <rm@joyent.com>
	[illumos-gate merge]

commit 42fcb65ea4f2c6f8cc5a3c6142a486cb49871fd2
    5150 zfs clone of a defer_destroy snapshot causes strangeness
commit f6164ad638e7346c4ae4ba393760a897cf6eb744
    5174 add sdt probe for blocked read in dbuf_read()
commit 655967ab7780f789dd00eece4464be60cd9aff5e
    5181 nscd is extremely slow when a local file is missing
commit dd3928f816b8d87f7ecc81d6ec1eec1257ed0cda
    5182 use after free in blkdev