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Brian Behlendorf 10fa254539
Linux 4.14, 4.19, 5.0+ compat: SIMD save/restore 
Contrary to initial testing we cannot rely on these kernels to
invalidate the per-cpu FPU state and restore the FPU registers.
Nor can we guarantee that the kernel won't modify the FPU state
which we saved in the task struck.

Therefore, the kfpu_begin() and kfpu_end() functions have been
updated to save and restore the FPU state using our own dedicated
per-cpu FPU state variables.

This has the additional advantage of allowing us to use the FPU
again in user threads.  So we remove the code which was added to
use task queues to ensure some functions ran in kernel threads.

Reviewed-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #9346
Closes #9403
2019-10-24 10:17:33 -07:00
..
.gitignore Prepare SPL repo to merge with ZFS repo 2018-05-29 14:51:39 -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 2019-06-13 13:15:46 -07:00
always-pyzfs.m4 Python config cleanup 2019-06-13 13:15:46 -07:00
always-sed.m4 Detect if sed supports --in-place 2019-10-16 19:19:48 -07:00
always-system.m4 OpenZFS restructuring - move platform specific headers 2019-09-05 09:34:54 -07:00
ax_code_coverage.m4 Fix typos in config/ 2019-08-30 09:40:30 -07:00
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 2019-07-09 09:28:05 -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 2019-10-01 12:50:34 -07:00
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 2019-10-01 12:50:34 -07:00
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 2019-10-01 12:50:34 -07:00
kernel-aio-fsync.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-automount.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bdev-logical-size.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bdev-physical-size.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bdi.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bio_set_dev.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bio-bvec-iter.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bio-end-io-t-args.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bio-failfast.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bio-op.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bio-rw-barrier.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-bio-rw-discard.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blk-queue-bdi.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blk-queue-discard.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blk-queue-flags.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blk-queue-flush.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blk-queue-max-hw-sectors.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blk-queue-max-segments.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blk-queue-unplug.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blkdev-get-by-path.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-blkdev-reread-part.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-block-device-operations.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-clear-inode.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-commit-metadata.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-config-defined.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-create-nameidata.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-ctl-table-name.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-current_bio_tail.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-current-time.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-declare-event-class.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-dentry-operations.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-dirty-inode.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-discard-granularity.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-elevator-change.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-encode-fh-inode.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-evict-inode.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-fallocate.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-file-dentry.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-file-inode.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-fmode-t.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-follow-down-one.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-fpu.m4 Linux 4.14, 4.19, 5.0+ compat: SIMD save/restore 2019-10-24 10:17:33 -07:00
kernel-fst-mount.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-fsync.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-generic_io_acct.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-generic_readlink.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-get-disk-and-module.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-get-disk-ro.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-get-link.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-global_page_state.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-group-info.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-in-compat-syscall.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-inode-getattr.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-inode-lock.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-inode-set-flags.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-inode-set-iversion.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-inode-times.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-insert-inode-locked.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-invalidate-bdev-args.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-is_owner_or_cap.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-kmap-atomic-args.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-kmem-cache.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
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 2019-10-01 12:50:34 -07:00
kernel-ktime_get_coarse_real_ts64.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-kuid-helpers.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-kuidgid.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-lookup-bdev.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-lookup-nameidata.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-lseek-execute.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-make-request-fn.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-misc-minor.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-mkdir-umode-t.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-mod-param.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-objtool.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-open-bdev-exclusive.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-pde-data.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-put-link.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-rename.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-rw.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-rwsem.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-sched.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-security-inode-init.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-set-nlink.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-setattr-prepare.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-sget-args.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-show-options.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-shrink.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-submit_bio.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-super-userns.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-timer.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-tmpfile.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-totalhigh_pages.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-totalram-pages-func.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-truncate-range.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-truncate-setsize.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-userns-capabilities.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-usleep_range.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-vfs-direct_IO.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-vfs-fsync.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-vfs-getattr.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-vfs-iterate.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-vfs-rw-iterate.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-wait.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-xattr-handler.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel-zlib.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
kernel.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00
lib-ld.m4 config: libintl/libiconv for gettext() detection 2019-04-19 12:09:29 -07:00
lib-link.m4 Fix typos in config/ 2019-08-30 09:40:30 -07:00
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/ 2019-08-30 09:40:30 -07:00
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
Rules.am OpenZFS restructuring - libspl 2019-10-02 10:39:48 -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/ 2019-08-30 09:40:30 -07:00
zfs-build.m4 Detect if sed supports --in-place 2019-10-16 19:19:48 -07:00
zfs-meta.m4 Perform KABI checks in parallel 2019-10-01 12:50:34 -07:00