Hello Greg,
#Forgot to add --compose
Following up on our discussion during the review of
kernel 4.4.138-stable, I have backported a few
patches that remove the remaining FPU lazy mode deadcode
from 4.4.y and 4.9.y. To avoid confusion I will send the
explanation on separate e-mails:
Patches for 4.4.y:
[PATCH 1/4] KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch
- This is a git cherry-pick of
5a5fbdc0e3f1 ("KVM: x86: remove eager_fpu field of struct kvm_vcpu_arch").
It applies cleanly and is required for the next patch not to cause conflicts
on arch/x86/kvm/cpuid.c
[PATCH 2/4] x86/fpu: Remove use_eager_fpu()
- The main conflict ocurred on fpu/core.c because commit
bf15a8cf8d14 ("x86/fpu/xstate: Rename 'xstate_size' to 'fpu_kernel_xstate_size', to distinguish it from 'fpu_user_xstate_size'")
is not on 4.4.y. That commit renames xstate_size to fpu_kernel_xstate_size
but it also has its conflicts so I decided just to fix the conflict manually/
[PATCH 3/4] x86/fpu: Remove struct fpu::counter
- caused one conflict because 4.4.y does not have commit
d1898b733619 ("x86/fpu: Add tracepoints to dump FPU state at key points")
I fixed it manually.
[PATCH 4/4] x86/fpu: Finish excising 'eagerfpu'
- caused a small conflict because 'nopku' is not in 4.4.y
- sorry my editor might have removed a couple of trailing spaces
automatically to Documentation/kernel-paramters.txt
- cause one conflict in these files because they didn't exist
arch/x86/include/asm/cpufeatures.h
arch/x86/mm/pkeys.c
tools/arch/x86/include/asm/cpufeatures.h
- Instead I removed the X86_FEATURE_EAGER_FPU definition from arch/x86/include/asm/cpufeature.h
Best regards,
Daniel Sangorrin
PS: Used git send-email --to stable@xxxxxxxxxxxxxxx --cc-cmd="./scripts/get_maintainer.pl --norolestats" 2197a44..HEAD
but it doesn't seem to work sorry...humm
