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| author | Avi Kivity <avi@qumranet.com> | 2007-11-20 23:01:14 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2008-01-30 17:53:10 +0200 |
| commit | 0f74a24c59b814c1c8085251cbea48d339f0c7c6 (patch) | |
| tree | 1102e9835f247b7c9d05887f36e2f8fa3b20681a /drivers/kvm/kvm_main.c | |
| parent | e5a4c8cad952d6e060991841f3632578ab3ae133 (diff) | |
| download | lwn-0f74a24c59b814c1c8085251cbea48d339f0c7c6.tar.gz lwn-0f74a24c59b814c1c8085251cbea48d339f0c7c6.zip | |
KVM: Add statistic for remote tlb flushes
Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/kvm_main.c')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 7939b5c9a4b4..aec6b67cfebb 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -115,6 +115,9 @@ void kvm_flush_remote_tlbs(struct kvm *kvm) if (cpu != -1 && cpu != raw_smp_processor_id()) cpu_set(cpu, cpus); } + if (cpus_empty(cpus)) + return; + ++kvm->stat.remote_tlb_flush; smp_call_function_mask(cpus, ack_flush, NULL, 1); } |