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Brian Behlendorf ff3e2e3c70 Perform KABI checks in parallel 
Reduce the time required for ./configure to perform the needed
KABI checks by allowing kbuild to compile multiple test cases in
parallel.  This was accomplished by splitting each test's source
code from the logic handling whether that code could be compiled
or not.

By introducing this split it's possible to minimize the number of
times kbuild needs to be invoked.  As importantly, it means all of
the tests can be built in parallel.  This does require a little extra
care since we expect some tests to fail, so the --keep-going (-k)
option must be provided otherwise some tests may not get compiled.
Furthermore, since a failure during the kbuild modpost phase will
result in an early exit; the final linking phase is limited to tests
which passed the initial compilation and produced an object file.

Once everything has been built the configure script proceeds as
previously.  The only significant difference is that it now merely
needs to test for the existence of a .ko file to determine the
result of a given test.  This vastly speeds up the entire process.

New test cases should use ZFS_LINUX_TEST_SRC to declare their test
source code and ZFS_LINUX_TEST_RESULT to check the result.  All of
the existing kernel-*.m4 files have been updated accordingly, see
config/kernel-current-time.m4 for a basic example.  The legacy
ZFS_LINUX_TRY_COMPILE macro has been kept to handle special cases
but it's use is not encouraged.

                  master (secs)   patched (secs)
                  -------------   ----------------
autogen.sh        61              68
configure         137             24  (~17% of current run time)
make -j $(nproc)  44              44
make rpms         287             150

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8547
Closes #9132
Closes #9341
Conflicts:
	Makefile.am
	config/kernel-fpu.m4
 		2020-01-22 13:49:01 -08:00
..
.gitignore Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
Rules.am compile with -fno-omit-frame-pointer 2019-04-14 11:04:54 -07:00
always-arch.m4 Illumos Crypto Port module added to enable native encryption in zfs 2016-07-20 10:43:30 -07:00
always-compiler-options.m4 compile with -fno-omit-frame-pointer 2019-04-14 11:04:54 -07:00
always-python.m4 Python config cleanup 2019-09-25 11:27:47 -07:00
always-pyzfs.m4 Python config cleanup 2019-09-25 11:27:47 -07:00
ax_code_coverage.m4 Fix typos in config/ 2020-01-22 13:48:58 -08:00
ax_python_devel.m4 Adopt pyzfs from ClusterHQ 2018-05-01 10:33:35 -07:00
ax_restore_flags.m4 config: better libtirpc detection 2019-03-02 16:19:05 -08:00
ax_save_flags.m4 config: better libtirpc detection 2019-03-02 16:19:05 -08:00
config.awk Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
config.rpath Prevent `make distclean` removing config/config.rpath 2019-04-26 11:22:14 -07:00
deb.am Fix dracut Debian/Ubuntu packaging 2019-09-25 11:27:49 -07:00
find_system_library.m4 config: better libtirpc detection 2019-03-02 16:19:05 -08:00
gettext.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
host-cpu-c-abi.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
iconv.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
intlmacosx.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
kernel-access-ok-type.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-acl-refcount.m4 Linux 4.16 compat: use correct *_dec_and_test() 2018-02-22 09:02:06 -08:00
kernel-acl.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-aio-fsync.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-automount.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bdev-logical-size.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bdev-physical-size.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bdi.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bio-bvec-iter.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bio-end-io-t-args.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bio-failfast.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bio-op.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bio-rw-barrier.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bio-rw-discard.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-bio_set_dev.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blk-queue-bdi.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blk-queue-discard.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blk-queue-flags.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blk-queue-flush.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blk-queue-max-hw-sectors.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blk-queue-max-segments.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blk-queue-unplug.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blkdev-get-by-path.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-blkdev-reread-part.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-block-device-operations.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-clear-inode.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-commit-metadata.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-config-defined.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-create-nameidata.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-ctl-table-name.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-current-time.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-current_bio_tail.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-declare-event-class.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-dentry-operations.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-dirty-inode.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-discard-granularity.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-elevator-change.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-encode-fh-inode.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-evict-inode.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-fallocate.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-file-dentry.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-file-inode.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-fmode-t.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-follow-down-one.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-fpu.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-fst-mount.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-fsync.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-generic_io_acct.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-generic_readlink.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-get-disk-and-module.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-get-disk-ro.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-get-link.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-global_page_state.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-group-info.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-in-compat-syscall.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-inode-getattr.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-inode-lock.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-inode-set-flags.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-inode-set-iversion.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-inode-times.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-insert-inode-locked.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-invalidate-bdev-args.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-is_owner_or_cap.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-kmap-atomic-args.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-kmem-cache.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-kmem.m4 Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
kernel-kstrtoul.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-ktime_get_coarse_real_ts64.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-kuid-helpers.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-kuidgid.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-lookup-bdev.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-lookup-nameidata.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-lseek-execute.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-make-request-fn.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-misc-minor.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-mkdir-umode-t.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-mod-param.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-objtool.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-open-bdev-exclusive.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-pde-data.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-put-link.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-rename.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-rw.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-rwsem.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-sched.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-security-inode-init.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-set-nlink.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-setattr-prepare.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-sget-args.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-show-options.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-shrink.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-submit_bio.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-super-userns.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-timer.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-tmpfile.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-totalhigh_pages.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-totalram-pages-func.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-truncate-range.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-truncate-setsize.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-userns-capabilities.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-usleep_range.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-vfs-direct_IO.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-vfs-fsync.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-vfs-getattr.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-vfs-iterate.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-vfs-rw-iterate.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-wait.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-xattr-handler.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel-zlib.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
kernel.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
lib-ld.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
lib-link.m4 Fix typos in config/ 2020-01-22 13:48:58 -08:00
lib-prefix.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
mount-helper.m4 The mount helper mount.zfs MUST be in /sbin (not '$sbindir'). 2015-05-18 16:54:36 -07:00
nls.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
pkg.m4 Fix typos in config/ 2020-01-22 13:48:58 -08:00
po.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
progtest.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
rpm.am Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
suppressed-warnings.txt Suppress packaging warning 2011-11-08 11:32:04 -08:00
tgz.am Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -07:00
toolchain-simd.m4 Add support for selecting encryption backend 2018-08-02 11:59:24 -07:00
user-dracut.m4 Accept udev and dracut paths specified by ./configure 2014-06-11 16:32:57 -07:00
user-gettext.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
user-libaio.m4 Fix mmap / libaio deadlock 2018-03-28 10:19:22 -07:00
user-libblkid.m4 Fix config issues: frame size and headers 2018-02-15 12:58:23 -08:00
user-libexec.m4 Tunable directory for zfs runtime scripts 2018-06-07 09:59:59 -07:00
user-libssl.m4 Fix config issues: frame size and headers 2018-02-15 12:58:23 -08:00
user-libtirpc.m4 config: better libtirpc detection 2019-03-02 16:19:05 -08:00
user-libudev.m4 Fix WANT_DEVNAME2DEVID configure error 2016-04-01 09:06:54 -07:00
user-libuuid.m4 Cleanup linking 2016-03-18 13:31:11 -07:00
user-makedev.m4 glibc 2.5 compat: use correct header for makedev() et al. 2017-03-31 09:32:00 -07:00
user-runstatedir.m4 Add defs for makefile installation dir vars 2014-03-31 16:11:13 -07:00
user-systemd.m4 Fix systemd spec file macros 2018-11-11 18:06:36 -08:00
user-sysvinit.m4 Add systemd unit files for ZFS startup 2014-02-05 12:25:30 -08:00
user-udev.m4 Accept udev and dracut paths specified by ./configure 2014-06-11 16:32:57 -07:00
user-zlib.m4 Cleanup linking 2016-03-18 13:31:11 -07:00
user.m4 Fix typos in config/ 2020-01-22 13:48:58 -08:00
zfs-build.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00
zfs-meta.m4 Perform KABI checks in parallel 2020-01-22 13:49:01 -08:00