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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
77 lines
2.2 KiB
Plaintext
77 lines
2.2 KiB
Plaintext
dnl #
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dnl # 3.17 API change,
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dnl # wait_on_bit() no longer requires an action argument. The former
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dnl # "wait_on_bit" interface required an 'action' function to be provided
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dnl # which does the actual waiting. There were over 20 such functions in the
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dnl # kernel, many of them identical, though most cases can be satisfied by one
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dnl # of just two functions: one which uses io_schedule() and one which just
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dnl # uses schedule(). This API change was made to consolidate all of those
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dnl # redundant wait functions.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_WAIT_ON_BIT], [
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AC_MSG_CHECKING([whether wait_on_bit() takes an action])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/wait.h>
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],[
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int (*action)(void *) = NULL;
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wait_on_bit(NULL, 0, action, 0);
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_WAIT_ON_BIT_ACTION, 1, [yes])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 4.13 API change
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dnl # Renamed struct wait_queue -> struct wait_queue_entry.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_WAIT_QUEUE_ENTRY_T], [
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AC_MSG_CHECKING([whether wait_queue_entry_t exists])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/wait.h>
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],[
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wait_queue_entry_t *entry __attribute__ ((unused));
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_WAIT_QUEUE_ENTRY_T, 1,
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[wait_queue_entry_t exists])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 4.13 API change
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dnl # Renamed wait_queue_head::task_list -> wait_queue_head::head
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dnl # Renamed wait_queue_entry::task_list -> wait_queue_entry::entry
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_WAIT_QUEUE_HEAD_ENTRY], [
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AC_MSG_CHECKING([whether wq_head->head and wq_entry->entry exist])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/wait.h>
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#ifdef HAVE_WAIT_QUEUE_ENTRY_T
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typedef wait_queue_head_t spl_wait_queue_head_t;
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typedef wait_queue_entry_t spl_wait_queue_entry_t;
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#else
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typedef wait_queue_head_t spl_wait_queue_head_t;
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typedef wait_queue_t spl_wait_queue_entry_t;
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#endif
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],[
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spl_wait_queue_head_t wq_head;
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spl_wait_queue_entry_t wq_entry;
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struct list_head *head __attribute__ ((unused));
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struct list_head *entry __attribute__ ((unused));
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head = &wq_head.head;
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entry = &wq_entry.entry;
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_WAIT_QUEUE_HEAD_ENTRY, 1,
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[wq_head->head and wq_entry->entry exist])
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],[
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AC_MSG_RESULT(no)
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])
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])
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