Rik van Riel 728e53fef4 x86/fpu: Also check fpu_lazy_restore() when use_eager_fpu() ... With Oleg's patch: 33a3ebdc07 ("x86, fpu: Don't abuse has_fpu in __kernel_fpu_begin/end()") kernel threads no longer have an FPU state even on systems with use_eager_fpu(). That in turn means that a task may still have its FPU state loaded in the FPU registers, if the task only got interrupted by kernel threads from when it went to sleep, to when it woke up again. In that case, there is no need to restore the FPU state for this task, since it is still in the registers. The kernel can simply use the same logic to determine this as is used for !use_eager_fpu() systems. Signed-off-by: Rik van Riel <riel@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Link: http://lkml.kernel.org/r/1423252925-14451-9-git-send-email-riel@redhat.com Signed-off-by: Borislav Petkov <bp@suse.de>		2015-02-19 11:15:55 +01:00
..
asm	x86/fpu: Also check fpu_lazy_restore() when use_eager_fpu()	2015-02-19 11:15:55 +01:00
uapi/asm	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-12-19 13:18:31 -08:00