- on Linux move Linux specific headers to zfs_context_os.h
- on FreeBSD move FreeBSD specific definitions to zfs_context_os.h
- remove duplicate tsd_ definitions
- remove unused AT_TYPE
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Don Brady <don.brady@delphix.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes#9668