diff options
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index ecc554374e4..d5cddd8dcc5 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -726,7 +726,11 @@ static inline int kvm_deassign_device(struct kvm *kvm, static inline void kvm_guest_enter(void) { BUG_ON(preemptible()); - vtime_account(current); + /* + * This is running in ioctl context so we can avoid + * the call to vtime_account() with its unnecessary idle check. + */ + vtime_account_system_irqsafe(current); current->flags |= PF_VCPU; /* KVM does not hold any references to rcu protected data when it * switches CPU into a guest mode. In fact switching to a guest mode @@ -740,7 +744,11 @@ static inline void kvm_guest_enter(void) static inline void kvm_guest_exit(void) { - vtime_account(current); + /* + * This is running in ioctl context so we can avoid + * the call to vtime_account() with its unnecessary idle check. + */ + vtime_account_system_irqsafe(current); current->flags &= ~PF_VCPU; } |