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authorPaolo Bonzini <pbonzini@redhat.com>2014-01-15 18:07:31 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2014-01-15 18:08:25 +0100
commitaab6d7ce37cf20753a336dc74473cf8a8aefa7c0 (patch)
treea2bf2f03c1226e48ed7ad73b5eb01aa1c21d9972 /arch/x86
parentf25e656d31ad112612839edaded18920cafea3b1 (diff)
KVM: remove useless write to vcpu->hv_clock.tsc_timestamp
After the previous patch from Marcelo, the comment before this write became obsolete. In fact, the write is unnecessary. The calls to kvm_write_tsc ultimately result in a master clock update as soon as all TSCs agree and the master clock is re-enabled. This master clock update will rewrite tsc_timestamp. So, together with the comment, delete the dead write too. Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/x86.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 842abd33e9b..0fbdced7873 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1278,8 +1278,6 @@ void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr)
kvm->arch.last_tsc_write = data;
kvm->arch.last_tsc_khz = vcpu->arch.virtual_tsc_khz;
- /* Reset of TSC must disable overshoot protection below */
- vcpu->arch.hv_clock.tsc_timestamp = 0;
vcpu->arch.last_guest_tsc = data;
/* Keep track of which generation this VCPU has synchronized to */