mirror_zfs/lib/libspl/include
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
..
ia32 Remove autotools products 2012-08-27 11:47:44 -07:00
os OpenZFS restructuring - libspl 2019-10-02 10:39:48 -07:00
rpc config: better libtirpc detection 2019-03-02 16:19:05 -08:00
sys Linux 4.14, 4.19, 5.0+ compat: SIMD save/restore 2019-10-24 10:17:33 -07:00
util cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
assert.h Fix ASSERT macros to not over-expand 2018-10-03 20:16:45 -07:00
atomic.h Fix typos in lib/ 2019-09-02 17:53:27 -07:00
libdevinfo.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
libgen.h zpool import -d to specify device path 2018-01-26 10:49:46 -08:00
libshare.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
limits.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
locale.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
Makefile.am OpenZFS restructuring - libspl 2019-10-02 10:39:48 -07:00
statcommon.h Add linux libspl support 2010-08-31 13:41:59 -07:00
stdio.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
stdlib.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
string.h Check for strlcat and strlcpy 2018-12-11 16:01:41 -08:00
stropts.h Add linux libspl support 2010-08-31 13:41:59 -07:00
thread.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
tzfile.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
ucred.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
umem.h Update build system and packaging 2018-05-29 16:00:33 -07:00
unistd.h Retire HAVE_IOCTL_* configure checks 2014-08-28 07:45:54 -07:00
zone.h cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00