ZFS patch for review: osol rev. 10204, 10209

[Martin Matuska]

Hi, I would like to propose the following two upstream changesets for
import:

OpenSolaris revision 10204: (fixes for zfs receive)
Bug ID 6760420: zfs unmount -f causes recv to fail
Bug ID 6759975: zplprops unavailable to examiner of in-progress receive

http://people.freebsd.org/~mm/patches/zfs/head-10204.patch

OpenSolaris revision 10209:
Bug ID 6830541: zfs_get_data_trips on a verify
Bug ID 6696242: multiple zfs_fillpage() zfs: accessing past end of
object panics
Bug ID 6785914: zfs fails to drop dn_struct_rwlock in recovery code path

http://people.freebsd.org/~mm/patches/zfs/head-10209.patch

Next, I am currently also working to import the corresponding fix for
Bug ID 6860996
(%temporary clones are not automatically destroyed on error) that fixes
in revision 10298 a problem that got introduced in 9396.