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| author | Avi Kivity <avi@qumranet.com> | 2008-07-20 15:24:22 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-07-20 15:29:54 +0400 |
| commit | 597a5f551ec4cd0aa0966e4fff4684ecc8c31c0d (patch) | |
| tree | efb47c57009ae3461027a1a0f2135769881b8cb0 /virt/kvm/kvm_main.c | |
| parent | 722c05f2192070bac0208b2c16ce13929b32d92f (diff) | |
| download | linux-597a5f551ec4cd0aa0966e4fff4684ecc8c31c0d.tar.xz | |
KVM: Adjust smp_call_function_mask() callers to new requirements
smp_call_function_mask() now complains when called in a preemptible context;
adjust its callers accordingly.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'virt/kvm/kvm_main.c')
| -rw-r--r-- | virt/kvm/kvm_main.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 30b36368fcdf..904d7b7bd780 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -105,10 +105,11 @@ static void ack_flush(void *_completed) void kvm_flush_remote_tlbs(struct kvm *kvm) { - int i, cpu; + int i, cpu, me; cpumask_t cpus; struct kvm_vcpu *vcpu; + me = get_cpu(); cpus_clear(cpus); for (i = 0; i < KVM_MAX_VCPUS; ++i) { vcpu = kvm->vcpus[i]; @@ -117,21 +118,24 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) if (test_and_set_bit(KVM_REQ_TLB_FLUSH, &vcpu->requests)) continue; cpu = vcpu->cpu; - if (cpu != -1 && cpu != raw_smp_processor_id()) + if (cpu != -1 && cpu != me) cpu_set(cpu, cpus); } if (cpus_empty(cpus)) - return; + goto out; ++kvm->stat.remote_tlb_flush; smp_call_function_mask(cpus, ack_flush, NULL, 1); +out: + put_cpu(); } void kvm_reload_remote_mmus(struct kvm *kvm) { - int i, cpu; + int i, cpu, me; cpumask_t cpus; struct kvm_vcpu *vcpu; + me = get_cpu(); cpus_clear(cpus); for (i = 0; i < KVM_MAX_VCPUS; ++i) { vcpu = kvm->vcpus[i]; @@ -140,12 +144,14 @@ void kvm_reload_remote_mmus(struct kvm *kvm) if (test_and_set_bit(KVM_REQ_MMU_RELOAD, &vcpu->requests)) continue; cpu = vcpu->cpu; - if (cpu != -1 && cpu != raw_smp_processor_id()) + if (cpu != -1 && cpu != me) cpu_set(cpu, cpus); } if (cpus_empty(cpus)) - return; + goto out; smp_call_function_mask(cpus, ack_flush, NULL, 1); +out: + put_cpu(); } |