Commit c8235c28 authored May 23, 2018 by Simon Guo Committed by Paul Mackerras Jun 01, 2018

KVM: PPC: Remove load/put vcpu for KVM_GET/SET_ONE_REG ioctl



Since the vcpu mutex locking/unlock has been moved out of vcpu_load()
/vcpu_put(), KVM_GET_ONE_REG and KVM_SET_ONE_REG doesn't need to do
ioctl with loading vcpu anymore. This patch removes vcpu_load()/vcpu_put()
from KVM_GET_ONE_REG and KVM_SET_ONE_REG ioctl.

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

parent b3cebfe8

arch/powerpc/kvm/powerpc.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -1998,14 +1998,12 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
		{
		struct kvm_one_reg reg;
		r = -EFAULT;
		vcpu_load(vcpu);
		if (copy_from_user(&reg, argp, sizeof(reg)))
		goto out;
		if (ioctl == KVM_SET_ONE_REG)
		r = kvm_vcpu_ioctl_set_one_reg(vcpu, &reg);
		else
		r = kvm_vcpu_ioctl_get_one_reg(vcpu, &reg);
		vcpu_put(vcpu);
		break;
		}

Admin message