Update build system and packaging

Minimal changes required to integrate the SPL sources in to the
ZFS repository build infrastructure and packaging.

Build system and packaging:
  * Renamed SPL_* autoconf m4 macros to ZFS_*.
  * Removed redundant SPL_* autoconf m4 macros.
  * Updated the RPM spec files to remove SPL package dependency.
  * The zfs package obsoletes the spl package, and the zfs-kmod
    package obsoletes the spl-kmod package.
  * The zfs-kmod-devel* packages were updated to add compatibility
    symlinks under /usr/src/spl-x.y.z until all dependent packages
    can be updated.  They will be removed in a future release.
  * Updated copy-builtin script for in-kernel builds.
  * Updated DKMS package to include the spl.ko.
  * Updated stale AUTHORS file to include all contributors.
  * Updated stale COPYRIGHT and included the SPL as an exception.
  * Renamed README.markdown to README.md
  * Renamed OPENSOLARIS.LICENSE to LICENSE.
  * Renamed DISCLAIMER to NOTICE.

Required code changes:
  * Removed redundant HAVE_SPL macro.
  * Removed _BOOT from nvpairs since it doesn't apply for Linux.
  * Initial header cleanup (removal of empty headers, refactoring).
  * Remove SPL repository clone/build from zimport.sh.
  * Use of DEFINE_RATELIMIT_STATE and DEFINE_SPINLOCK removed due
    to build issues when forcing C99 compilation.
  * Replaced legacy ACCESS_ONCE with READ_ONCE.
  * Include needed headers for `current` and `EXPORT_SYMBOL`.

Reviewed-by: Tony Hutter <[email protected]>
Reviewed-by: Olaf Faaland <[email protected]>
Reviewed-by: Matthew Ahrens <[email protected]>
Reviewed-by: Pavel Zakharov <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
TEST_ZIMPORT_SKIP="yes"
Closes #7556

1 files changed, 16 insertions, 0 deletions

diff --git a/NOTICE b/NOTICE
new file mode 100644
index 000000000..321892039
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,16 @@
+This work was produced under the auspices of the U.S. Department of Energy by
+Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
+
+This work was prepared as an account of work sponsored by an agency of the
+United States Government. Neither the United States Government nor Lawrence
+Livermore National Security, LLC, nor any of their employees makes any warranty,
+expressed or implied, or assumes any legal liability or responsibility for the
+accuracy, completeness, or usefulness of any information, apparatus, product, or
+process disclosed, or represents that its use would not infringe privately owned
+rights. Reference herein to any specific commercial product, process, or service
+by trade name, trademark, manufacturer, or otherwise does not necessarily
+constitute or imply its endorsement, recommendation, or favoring by the United
+States Government or Lawrence Livermore National Security, LLC. The views and
+opinions of authors expressed herein do not necessarily state or reflect those
+of the United States Government or Lawrence Livermore National Security, LLC,
+and shall not be used for advertising or product endorsement purposes.