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| author | Christoffer Dall <christoffer.dall@linaro.org> | 2017-09-08 16:07:13 +0200 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2018-01-02 10:05:45 +0100 |
| commit | 5a24575032971c5a9a4580417a791c427ebdb8e5 (patch) | |
| tree | 80434e98e100a2b8785128fa6462759c0953bfda | |
| parent | KVM: arm: Use PTR_ERR_OR_ZERO() (diff) | |
| download | linux-5a24575032971c5a9a4580417a791c427ebdb8e5.tar.xz linux-5a24575032971c5a9a4580417a791c427ebdb8e5.zip | |
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>
| -rw-r--r-- | virt/kvm/arm/arm.c | 2 |
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); } |