path: root/virt
diff options
authorChristoffer Dall <christoffer.dall@linaro.org>2017-09-08 07:07:13 -0700
committerChristoffer Dall <christoffer.dall@linaro.org>2018-01-02 10:05:45 +0100
commit5a24575032971c5a9a4580417a791c427ebdb8e5 (patch)
tree80434e98e100a2b8785128fa6462759c0953bfda /virt
parent4404b336cf32bf709942067fe71d8b5cf70fb2b2 (diff)
KVM: arm/arm64: Remove redundant preemptible checks
The __this_cpu_read() and __this_cpu_write() functions already implement checks for the required preemption levels when using CONFIG_DEBUG_PREEMPT which gives you nice error messages and such. Therefore there is no need to explicitly check this using a BUG_ON() in the code (which we don't do for other uses of per cpu variables either). Acked-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt')
1 files changed, 0 insertions, 2 deletions
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index 6b60c98a6e22..3610e132df8b 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -71,7 +71,6 @@ static DEFINE_PER_CPU(unsigned char, kvm_arm_hardware_enabled);
static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
- BUG_ON(preemptible());
__this_cpu_write(kvm_arm_running_vcpu, vcpu);
@@ -81,7 +80,6 @@ static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
struct kvm_vcpu *kvm_arm_get_running_vcpu(void)
- BUG_ON(preemptible());
return __this_cpu_read(kvm_arm_running_vcpu);