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93ce2b4ca5
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 <hutter2@llnl.gov>
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Pavel Zakharov <pavel.zakharov@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
TEST_ZIMPORT_SKIP="yes"
Closes #7556
75 lines
1.9 KiB
Text
75 lines
1.9 KiB
Text
dnl #
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dnl # 3.1 API Change
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dnl #
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dnl # The rw_semaphore.wait_lock member was changed from spinlock_t to
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dnl # raw_spinlock_t at commit ddb6c9b58a19edcfac93ac670b066c836ff729f1.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW], [
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AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw])
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tmp_flags="$EXTRA_KCFLAGS"
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EXTRA_KCFLAGS="-Werror"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/rwsem.h>
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],[
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struct rw_semaphore dummy_semaphore __attribute__ ((unused));
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raw_spinlock_t dummy_lock __attribute__ ((unused)) =
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__RAW_SPIN_LOCK_INITIALIZER(dummy_lock);
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dummy_semaphore.wait_lock = dummy_lock;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(RWSEM_SPINLOCK_IS_RAW, 1,
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[struct rw_semaphore member wait_lock is raw_spinlock_t])
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],[
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AC_MSG_RESULT(no)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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dnl #
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dnl # 3.16 API Change
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dnl #
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dnl # rwsem-spinlock "->activity" changed to "->count"
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ACTIVITY], [
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AC_MSG_CHECKING([whether struct rw_semaphore has member activity])
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tmp_flags="$EXTRA_KCFLAGS"
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EXTRA_KCFLAGS="-Werror"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/rwsem.h>
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],[
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struct rw_semaphore dummy_semaphore __attribute__ ((unused));
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dummy_semaphore.activity = 0;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_RWSEM_ACTIVITY, 1,
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[struct rw_semaphore has member activity])
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],[
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AC_MSG_RESULT(no)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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dnl #
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dnl # 4.8 API Change
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dnl #
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dnl # rwsem "->count" changed to atomic_long_t type
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [
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AC_MSG_CHECKING(
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[whether struct rw_semaphore has atomic_long_t member count])
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tmp_flags="$EXTRA_KCFLAGS"
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EXTRA_KCFLAGS="-Werror"
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/rwsem.h>
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],[
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DECLARE_RWSEM(dummy_semaphore);
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(void) atomic_long_read(&dummy_semaphore.count);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_RWSEM_ATOMIC_LONG_COUNT, 1,
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[struct rw_semaphore has atomic_long_t member count])
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],[
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AC_MSG_RESULT(no)
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])
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EXTRA_KCFLAGS="$tmp_flags"
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])
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