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, 6 insertions, 6 deletions

diff --git a/config/kernel-sched.m4 b/config/kernel-sched.m4
index 5ae21676e..640b008aa 100644
--- a/config/kernel-sched.m4
+++ b/config/kernel-sched.m4
@@ -2,9 +2,9 @@ dnl #
 dnl # 3.9 API change,
 dnl # Moved things from linux/sched.h to linux/sched/rt.h
 dnl #
-AC_DEFUN([SPL_AC_SCHED_RT_HEADER],
+AC_DEFUN([ZFS_AC_KERNEL_SCHED_RT_HEADER],
 	[AC_MSG_CHECKING([whether header linux/sched/rt.h exists])
-	SPL_LINUX_TRY_COMPILE([
+	ZFS_LINUX_TRY_COMPILE([
 		#include <linux/sched.h>
 		#include <linux/sched/rt.h>
 	],[
@@ -21,9 +21,9 @@ dnl #
 dnl # 4.11 API change,
 dnl # Moved things from linux/sched.h to linux/sched/signal.h
 dnl #
-AC_DEFUN([SPL_AC_SCHED_SIGNAL_HEADER],
+AC_DEFUN([ZFS_AC_KERNEL_SCHED_SIGNAL_HEADER],
 	[AC_MSG_CHECKING([whether header linux/sched/signal.h exists])
-	SPL_LINUX_TRY_COMPILE([
+	ZFS_LINUX_TRY_COMPILE([
 		#include <linux/sched.h>
 		#include <linux/sched/signal.h>
 	],[
@@ -41,9 +41,9 @@ dnl # The io_schedule_timeout() function is present in all 2.6.32 kernels
 dnl # but it was not exported until Linux 3.19.  The RHEL 7.x kernels which
 dnl # are based on a 3.10 kernel do export this symbol.
 dnl #
-AC_DEFUN([SPL_AC_IO_SCHEDULE_TIMEOUT], [
+AC_DEFUN([ZFS_AC_KERNEL_IO_SCHEDULE_TIMEOUT], [
 	AC_MSG_CHECKING([whether io_schedule_timeout() is available])
-	SPL_LINUX_TRY_COMPILE_SYMBOL([
+	ZFS_LINUX_TRY_COMPILE_SYMBOL([
 		#include <linux/sched.h>
 	], [
 		(void) io_schedule_timeout(1);