x86/fpu, kvm: Remove KVM vcpu->fpu_counter

With the removal of the lazy FPU code, this field is no longer used.
Get rid of it.

Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: pbonzini@redhat.com
Link: http://lkml.kernel.org/r/1475627678-20788-7-git-send-email-riel@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 59d7761..2c7e775 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7348,10 +7348,8 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
 
 void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
 {
-       if (!vcpu->guest_fpu_loaded) {
-               vcpu->fpu_counter = 0;
+       if (!vcpu->guest_fpu_loaded)
                return;
-       }
 
        vcpu->guest_fpu_loaded = 0;
        copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu);

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 9c28b4d..4e6905c 100644 (file)
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -224,7 +224,6 @@ struct kvm_vcpu {
 
        int fpu_active;
        int guest_fpu_loaded, guest_xcr0_loaded;
-       unsigned char fpu_counter;
        struct swait_queue_head wq;
        struct pid *pid;
        int sigset_active;